opensteno_qmk/users/manna-harbour_miryoku

• Miryoku QMK
  • Branches
    • QMK master
    • Miryoku QMK development branch
  • Building
    • Local Builds
      • qmk
      • make
    • Workflow Builds
      • Build Examples
      • Build Inputs
  • Subset Mapping
    • Userspace
    • Community Layouts
      • 60_ansi
      • alice
      • alice_split_bs
      • ergodox
      • ortho_4x10
      • ortho_4x12
      • ortho_5x12
      • ortho_5x15
      • planck_mit
      • split_3x5_3
      • split_3x6_3
    • Keyboards
      • a_dux
      • atreus
      • bastardkb/charybdis/3x5
      • bastardkb/charybdis/4x6
      • bastardkb/scylla
      • draculad
      • ergotravel
      • ferris
      • for_science
      • fortitude60
      • gergo
      • handwired/dactyl_manuform/4x5
      • handwired/dactyl_manuform/5x6
      • jorne
      • keebio/iris
      • keyboardio/atreus
      • lily58
      • moonlander
      • pluckey
      • redox_w
      • sofle
      • splitkb/kyria
      • torn
  • Additional and Experimental Features
    • Thumb Combos
    • Bilateral Combinations
    • Retro Shift

Miryoku QMK

Miryoku is an ergonomic, minimal, orthogonal, and universal keyboard layout. Miryoku QMK is the Miryoku implementation for QMK.

Branches

QMK master

Miryoku QMK is periodically merged upstream into QMK master and it is generally recommended to build directly from QMK master.

QMK master is at https://github.com/qmk/qmk_firmware/tree/master, and the corresponding Miryoku QMK readme is at https://github.com/qmk/qmk_firmware/tree/master/users/manna-harbour_miryoku.

Miryoku QMK development branch

The Miryoku QMK development branch is miryoku and may contain new commits not yet merged into QMK master.

miryoku is at https://github.com/manna-harbour/miryoku_qmk/tree/miryoku, and the corresponding Miryoku QMK readme is at https://github.com/manna-harbour/miryoku_qmk/tree/miryoku/users/manna-harbour_miryoku.

New commits can be seen at the top of the history with commit messages beginning [miryoku]. After the new commits are squashed and merged upstream into QMK master by pull request the miryoku branch is renamed and a new miryoku branch is created from QMK master.

To checkout the miryoku branch in your existing QMK build environment:

git remote add miryoku_qmk git@github.com:manna-harbour/miryoku_qmk.git # if using SSH
git remote add miryoku_qmk https://github.com/manna-harbour/miryoku_qmk.git # if using HTTPS
git fetch miryoku_qmk
git checkout --track miryoku_qmk/miryoku

Building

Local Builds

First set up the QMK build environment and build the default keymap for your keyboard.

Build with manna-harbour_miryoku as the keymap name. Customised defaults for alternative layout options can be set in custom_rules.mk. Options can also be set or overridden at build time.

qmk

Build with the qmk command. E.g.

qmk compile -c -kb crkbd -km manna-harbour_miryoku # build for crkbd
qmk flash -c -kb crkbd -km manna-harbour_miryoku # build for crkbd and flash
qmk compile -c -kb crkbd -km manna-harbour_miryoku -e MIRYOKU_ALPHAS=QWERTY -e MIRYOKU_NAV=INVERTEDT -e MIRYOKU_CLIPBOARD=WIN -e MIRYOKU_LAYERS=FLIP # build for crkbd with alternative layouts

make

First cd to the repository root. Then build with make. E.g.

make clean crkbd:manna-harbour_miryoku # build for crkbd
make clean crkbd:manna-harbour_miryoku:flash # build for crkbd and flash
make clean crkbd:manna-harbour_miryoku MIRYOKU_ALPHAS=QWERTY MIRYOKU_NAV=INVERTEDT MIRYOKU_CLIPBOARD=WIN MIRYOKU_LAYERS=FLIP # build for crkbd with alternative layouts

Workflow Builds

Firmware can be built via GitHub Actions workflows without use of a local build environment. Local tools are still required for flashing.

First log in to GitHub, fork the Miryoku QMK development branch repository, and enable workflows.

To access a workflow, visit the Actions tab and select the workflow. To download the firmware from a workflow run, select the workflow, select the workflow run, select the desired Artifacts, and unzip the downloaded zip file.

Workflow files are in /mirrors/opensteno_qmk/src/branch/main/.github/workflows.

Build Examples

Copy one of the included Build Example workflow files, edit the name value, and edit and add options and values as desired. Select Run workflow, select the Branch if desired, and activate Run workflow.

Options are specified in the with section and are of the following form.

option: '["value"]'

For multiple values per option use the following form, and a matrix build will be performed for each combination of values across all options.

option: '["value1","value2"]'

The keyboard option specifies the keyboard and is required. All other options are optional.

The alphas, nav, clipboard, and layers options correspond to the alternative layout options. The mapping option corresponds to the alternative mapping options. Alternative layout and mapping options are given in the documentation in the form MIRYOKU_OPTION=VALUE. To use here, convert to the form specified above. Use default to represent the default value. Values for these five options are case-insensitive. See the Test All Configs workflow file for all supported values.

The rules and config options can be used to specify values to be appended to custom_rules.mk and custom_config.h, respectively. Separate multiple lines with \n.

Build Inputs

The Build Inputs workflow can be used without editing workflow files. Select Run workflow, select the Branch and fill out the form as desired, and activate Run workflow.

Options are specified by entering values directly in the corresponding field. Multiple comma separated values can be entered per option and a matrix build will be performed for each combination of values across all options.

The Keyboard option specifies the keyboard and is required. All other options are optional.

The Miryoku Alphas, Miryoku Nav, Miryoku Clipboard, and Miryoku Layers options correspond to the alternative layout options. The Miryoku Mapping option corresponds to the alternative mapping options. Alternative layout and mapping options are given in the documentation in the form MIRYOKU_OPTION=VALUE. To use here, enter the value in the corresponding Miryoku Option field. Use default to represent the default value. Values for these five options are case-insensitive.

The custom_rules.mk and custom_config.h options can be used to specify values to be appended to the corresponding files. Join multiple lines with \n.

Subset Mapping

The keymap, build options, and configuration are shared between keyboards. The layout is mapped onto keyboards with different physical layouts as a subset without code duplication using the QMK userspace feature and C macros.

Userspace

The keymap is defined for LAYOUT_miryoku which is 10x4, with the outer 2 positions on the bottom row unused and the rest of the bottom row being the thumb keys.

/mirrors/opensteno_qmk/src/branch/main/users/manna-harbour_miryoku/rules.mk

Build options. Automatically included.

/mirrors/opensteno_qmk/src/branch/main/users/manna-harbour_miryoku/custom_rules.mk

Custom make options including customised defaults for alternative layout options, for local builds. Included from rules.mk.

/mirrors/opensteno_qmk/src/branch/main/users/manna-harbour_miryoku/post_rules.mk

Handles Miryoku make options. Included from rules.mk.

/mirrors/opensteno_qmk/src/branch/main/users/manna-harbour_miryoku/config.h

Config options. Automatically included.

/mirrors/opensteno_qmk/src/branch/main/users/manna-harbour_miryoku/custom_config.h

Custom config options for local builds. Included from config.h.

/mirrors/opensteno_qmk/src/branch/main/users/manna-harbour_miryoku/manna-harbour_miryoku.h

Keymap-related definitions. Included from manna-harbour_miryoku.c. Layer data is generated by Miryoku Babel and is included from files in the /mirrors/opensteno_qmk/src/branch/main/users/manna-harbour_miryoku/miryoku_babel directory.

/mirrors/opensteno_qmk/src/branch/main/users/manna-harbour_miryoku/manna-harbour_miryoku.c

Contains the keymap. Added from rules.mk.

Community Layouts

To use the keymap on a keyboard supporting the community layouts feature, LAYOUT_miryoku is defined as a macro mapping onto the layout's own LAYOUT macro, leaving the unused keys as KC_NO.

For keyboards supporting multiple layouts for which subset mappings are available, select the layout with FORCE_LAYOUT in the make command line when building. E.g.:

make planck/rev6:manna-harbour_miryoku:flash FORCE_LAYOUT=planck_mit # planck_mit
make planck/rev6:manna-harbour_miryoku:flash FORCE_LAYOUT=ortho_4x12 # ortho_4x12

60_ansi

An angled ortho split layout is mapped onto the row-staggered keyboard. The rows are moved up to better position the thumb keys, the hands are separated as much as possible, and the left hand column angle is reversed to reduce ulnar deviation of the wrists.

An alternative subset mapping is also provided without reverse column angle. To select this mapping, append MIRYOKU_MAPPING=NOREVERSEANGLE to the make command line when building.

Another alternative subset mapping is provided mapping only the 3x10 alphas, plus spacebar for space / Nav, with the remainder being the default 60_ansi keymap with semicolon in place of quote. To select this mapping, append MIRYOKU_MAPPING=LITE to the make command line when building.

Keyboards supporting this layout: alps64, amj60, bakeneko60, bm60poker, bm60rgb, do60, dp60, dz60, facew, gskt00, infinity60, jm60, kc60, kc60se, ok60, org60, paladin64, panc60, reviung61, smk60, v60_type_r, yd60mq, 1upkeyboards/1up60hse, 1upkeyboards/1up60rgb, 40percentclub/luddite, acheron/keebspcb, acheron/lasgweloth, ai03/polaris, akegata_denki/device_one, atxkb/1894, bioi/g60ble, bt66tech/bt66tech60, cannonkeys/an_c, cannonkeys/instant60, cannonkeys/practice60, clawsome/coupe, dm9records/tartan, duck/eagle_viper, evyd13/plain60, exclusive/e6_rgb, gh60/revc, gh60/satan, gh60/v1p3, handwired/xealousbrown, hineybush/h60, hs60/v1, keebio/wtf60, noxary/260, playkbtw/pk60, ryloo_studio/m0110, thevankeyboards/bananasplit, wilba_tech/zeal60, xd60/rev2, xd60/rev3, cannonkeys/db60/hotswap, cannonkeys/db60/j02, cannonkeys/db60/rev2, exclusive/e6v2/le, exclusive/e6v2/oe, foxlab/leaf60/universal, handwired/co60/rev1, handwired/co60/rev7, handwired/swiftrax/nodu, hs60/v2/ansi, inett_studio/sqx/universal, melgeek/mj61/rev1, melgeek/mj61/rev2, melgeek/mj63/rev1, melgeek/mj63/rev2, sentraq/s60_x/default, sentraq/s60_x/rgb.

Example build command lines:

make dz60:manna-harbour_miryoku:flash # dz60
make dz60:manna-harbour_miryoku:flash MIRYOKU_MAPPING=NOREVERSEANGLE  # dz60, without reverse column angle
make dz60:manna-harbour_miryoku:flash MIRYOKU_MAPPING=LITE  # dz60, with lite mapping

alice

This is a hybrid mapping. Only the 3x10 alphas plus spacebars as primary thumb keys are mapped. The remaining keys are the same as the default keymap but with semicolon in place of quote. The keys adjacent to the spacebars are also mapped as corresponding thumb keys but may not be usable as such.

Keyboards supporting this layout: cheshire/curiosity, handwired/owlet60, mechlovin/adelais, projectkb/alice, sck/osa, axolstudio/yeti, coarse/cordillera, edda, evyd13/wonderland, fallacy, kb_elmo/sesame, keebsforall/coarse60, ramonimbao/aelith, sneakbox/aliceclone, tkc/osav2, zoo/wampus.

alice_split_bs

This is a hybrid mapping. Only the 3x10 alphas plus spacebars as primary thumb keys are mapped. The remaining keys are the same as the default keymap but with semicolon in place of quote. The keys adjacent to the spacebars are also mapped as corresponding thumb keys but may not be usable as such.

Keyboards supporting this layout: cheshire/curiosity, ergosaurus, handwired/colorlice, handwired/owlet60, mechlovin/adelais, projectkb/alice, sck/osa, tgr/alice, xelus/valor/rev1, xelus/valor/rev2, axolstudio/yeti, coarse/cordillera, edda, evyd13/wonderland, fallacy, kb_elmo/sesame, keebsforall/coarse60, nightly_boards/alter/rev1, ramonimbao/aelith, seigaiha, sneakbox/aliceclone, tkc/osav2, zoo/wampus.

ergodox

For the ergodox layout, the main 5x3 alphas are used as usual. The primary and secondary thumb keys are the inner and outer 2u thumb keys and the tertiary thumb key is the innermost key of the partial bottom row. The remaining keys are unused.

An alternative subset mapping is provided with all keys shifted up one row creating thumb keys in the original alpha area. To select this mapping, append MIRYOKU_MAPPING=SHIFTED_ROWS to the make command line when building.

Another alternative subset mapping is provided as for MIRYOKU_MAPPING=SHIFTED_ROWS but with the thumb keys shifted one position in the direction of thumb extension. To select this mapping, append MIRYOKU_MAPPING=SHIFTED_ROWS_EXTENDED_THUMBS to the make command line when building.

Another alternative subset mapping is provided as for MIRYOKU_MAPPING=SHIFTED_ROWS_EXTENDED_THUMBS but with the pinkie column moved down one row. To select this mapping, append MIRYOKU_MAPPING=SHIFTED_ROWS_EXTENDED_THUMBS_PINKIE_STAGGER to the make command line when building.

Keyboards supporting this layout: ergodone, ergodox_ez, ergodox_infinity, hotdox.

Example build command lines:

make ergodox_infinity:manna-harbour_miryoku:flash # ergodox_infinity
make ergodox_ez:manna-harbour_miryoku:flash # ergodox_ez
make ergodox_ez:manna-harbour_miryoku:flash MIRYOKU_MAPPING=SHIFTED_ROWS # ergodox_ez, shifted rows
make ergodox_ez:manna-harbour_miryoku:flash MIRYOKU_MAPPING=SHIFTED_ROWS_EXTENDED_THUMBS # ergodox_ez, shifted rows, extended thumbs
make ergodox_ez:manna-harbour_miryoku:flash MIRYOKU_MAPPING=SHIFTED_ROWS_EXTENDED_THUMBS_PINKIE_STAGGER # ergodox_ez, shifted rows, extended thumbs, pinkie stagger

ortho_4x10

An alternative with 180 degree rotation is also provided to enable the USB cable to be relocated for use with laptops. To select this mapping, append MIRYOKU_MAPPING=ROTATE to the make command line when building.

Keyboards supporting this layout: newgame40, nimrod, marksard/rhymestone, pabile/p40.

Example build command lines:

make marksard/rhymestone:manna-harbour_miryoku:flash # marksard/rhymestone
make pabile/p40:manna-harbour_miryoku:flash MIRYOKU_MAPPING=ROTATE # pabile/p40, rotate

ortho_4x12

For the ortho_4x12 layout, the middle two columns, and the 2 keys on each end of the bottom row are unused. This allows the hands to be positioned without ulnar deviation of the wrists.

For split keyboards using this layout the halves can be positioned and rotated for each hand and so an alternative mapping is provided. The right half is as follows: The rightmost column bottom 3 keys is the pinkie column. The middle 4 columns top 3 rows are for the remaining fingers. The pinkie column is one row lower than the other columns to provide some column stagger. The bottom row left 3 keys are the thumb keys. The remaining keys are unused. To select this mapping, append MIRYOKU_MAPPING=SPLIT to the make command line when building.

An alternative with extended thumb position but without pinkie column stagger is also provided. To select this mapping, append MIRYOKU_MAPPING=EXTENDED_THUMBS to the make command line when building.

Keyboards supporting this layout: chimera_ls, contra, efreet, jj40, jnao, lets_split, lets_split_eh, meira, niu_mini, quark, tau4, telophase, vitamins_included, zlant, 40percentclub/4x4, 40percentclub/nori, acheron/shark, boardsource/4x12, cannonkeys/ortho48, dm9records/plaid, evyd13/eon40, evyd13/pockettype, handwired/floorboard, handwired/jotanck, handwired/wulkan, kbdfans/kbd4x, keebio/levinson, keebio/wavelet, mechstudio/ud_40_ortho, planck/ez, planck/light, planck/rev1, planck/rev2, planck/rev3, planck/rev4, planck/rev5, planck/rev6, planck/thk, rgbkb/zygomorph, zvecr/split_blackpill, zvecr/zv48, keebio/nyquist/rev1, keebio/nyquist/rev2, keebio/nyquist/rev3, montsinger/rebound/rev1, montsinger/rebound/rev2, montsinger/rebound/rev3, montsinger/rebound/rev4, signum/3_0/elitec, spaceman/pancake/feather, spaceman/pancake/promicro, ymdk/ymd40/v2.

Example build command lines:

make planck/rev6:manna-harbour_miryoku:flash FORCE_LAYOUT=ortho_4x12 # planck, ortho_4x12
make planck/rev6:manna-harbour_miryoku:flash FORCE_LAYOUT=ortho_4x12 MIRYOKU_MAPPING=EXTENDED_THUMBS # planck, ortho_4x12, extended thumbs
make keebio/levinson:manna-harbour_miryoku:flash MIRYOKU_MAPPING=SPLIT # levinson
make keebio/levinson:manna-harbour_miryoku:flash MIRYOKU_MAPPING=EXTENDED_THUMBS # levinson, extended thumbs

ortho_5x12

As per ortho_4x12 but the top row is unused.

Keyboards supporting this layout: fractal, jj50, jnao, boardsource/5x12, cannonkeys/atlas_alps, cannonkeys/ortho60, handwired/jot50, handwired/riblee_f401, handwired/riblee_f411, handwired/rs60, keycapsss/o4l_5x12, peej/lumberjack, preonic/rev1, preonic/rev2, preonic/rev3, rgbkb/zygomorph, keebio/nyquist/rev1, keebio/nyquist/rev2, keebio/nyquist/rev3.

Example build command lines:

make preonic/rev3:manna-harbour_miryoku:flash # preonic/rev3
make preonic/rev3:manna-harbour_miryoku:flash MIRYOKU_MAPPING=EXTENDED_THUMBS # preonic/rev3, extended thumbs
make keebio/nyquist/rev3:manna-harbour_miryoku:flash MIRYOKU_MAPPING=SPLIT # nyquist/rev3, split
make keebio/nyquist/rev3:manna-harbour_miryoku:flash MIRYOKU_MAPPING=EXTENDED_THUMBS # nyquist/rev3, extended thumbs

ortho_5x15

For the ortho_5x15 layout, the top row, middle 5 columns, and the 2 keys on each end of the bottom row are unused. This allows the hands to be positioned without ulnar deviation of the wrists.

An alternative subset mapping is also provided with the thumb keys shifted across one position in the direction of thumb extension. To select this mapping, append MIRYOKU_MAPPING=EXTENDED_THUMBS to the make command line when building.

Keyboards supporting this layout: atomic, geminate60, idobo, punk75, xd75, 40percentclub/5x5, 40percentclub/i75, cannonkeys/ortho75, sendyyeah/75pixels.

Example build command lines:

make atomic:manna-harbour_miryoku:flash # atomic
make atomic:manna-harbour_miryoku:flash MIRYOKU_MAPPING=EXTENDED_THUMBS # atomic, extended thumbs
make idobo:manna-harbour_miryoku:flash # idobo

planck_mit

The middle two columns including the middle 2u key, and the 2 keys on each end of the bottom row are unused.

Keyboards supporting this layout: bm40hsrgb, contra, efreet, jj40, latin47ble, mt40, niu_mini, quark, zlant, dm9records/plaid, evyd13/eon40, handwired/aranck, handwired/heisenberg, kbdfans/kbd4x, planck/ez, planck/light, planck/rev1, planck/rev2, planck/rev3, planck/rev4, planck/rev5, planck/rev6, planck/thk, spaceman/pancake/feather, spaceman/pancake/promicro.

Example build command lines:

make planck/ez:manna-harbour_miryoku:flash # planck ez
make planck/rev6:manna-harbour_miryoku:flash FORCE_LAYOUT=planck_mit # planck rev6, mit

split_3x5_3

Keyboards supporting this layout: arch_36, boardsource/microdox, centromere, crkbd, eek, miniaxe, minidox/rev1, pteron36, squiggle/rev1, suihankey/split/rev1.

Example build command lines:

make crkbd:manna-harbour_miryoku:flash # crkbd
make minidox:manna-harbour_miryoku:flash # minidox

split_3x6_3

The outer columns are unused.

Keyboards supporting this layout: centromere, crkbd, bastardkb/tbkmini.

Example build command lines:

make bastardkb/tbkmini:manna-harbour_miryoku:flash # bastardkb/tbkmini
make crkbd:manna-harbour_miryoku:flash # crkbd

Keyboards

To use the keymap on a keyboard which does not support the layouts feature, LAYOUT_miryoku is defined as a macro mapping onto the keyboard's own LAYOUT macro, leaving the unused keys as KC_NO.

a_dux

Thumb combos are enabled automatically for this keyboard.

To build for this keyboard,

make a_dux:manna-harbour_miryoku:flash

atreus

Only the main 5x3 alphas and the inner 3 thumb keys are used.

To build for this keyboard,

make atreus:manna-harbour_miryoku:flash

bastardkb/charybdis/3x5

Thumb combos are enabled automatically for this keyboard.

To build for this keyboard,

make bastardkb/charybdis/3x5:manna-harbour_miryoku:flash

bastardkb/charybdis/4x6

On the trackball side the bottom row thumb key is used as the tertiary thumb key. Additionally, thumb combos are enabled automatically for this keyboard.

To build for this keyboard,

make bastardkb/charybdis/4x6:manna-harbour_miryoku:flash

bastardkb/scylla

To build for this keyboard,

make bastardkb/scylla:manna-harbour_miryoku:flash

draculad

To build for this keyboard,

make draculad:manna-harbour_miryoku:flash

ergotravel

To build for this keyboard,

make ergotravel:manna-harbour_miryoku:flash

ferris

Thumb combos are enabled automatically for this keyboard.

To build for this keyboard,

make ferris/0_2:manna-harbour_miryoku:flash # 0_2
make ferris/sweep:manna-harbour_miryoku:flash # sweep

for_science

The top row is unused.

To build for this keyboard,

make for_science:manna-harbour_miryoku:flash

fortitude60

To build for this keyboard,

make fortitude60:manna-harbour_miryoku:flash

gergo

Only the main 5x3 alphas and the outer 3 thumb keys are used.

To build for this keyboard,

make gergo:manna-harbour_miryoku:flash

handwired/dactyl_manuform/4x5

Only the main 5x3 alphas and the main 3 thumb keys are used.

To build for this keyboard,

make handwired/dactyl_manuform/4x5:manna-harbour_miryoku:flash

handwired/dactyl_manuform/5x6

Only the main 5x3 alphas and the main 3 thumb keys are used.

To build for this keyboard,

make handwired/dactyl_manuform/5x6:manna-harbour_miryoku:flash

jorne

To build for this keyboard,

make jorne:manna-harbour_miryoku:flash

keebio/iris

Only the main 5x3 alphas and the bottom 3 thumb keys are used.

To build for this keyboard,

make keebio/iris/rev4:manna-harbour_miryoku:flash

keyboardio/atreus

Only the main 5x3 alphas and the inner 3 thumb keys are used.

To build for this keyboard,

make keyboardio/atreus:manna-harbour_miryoku:flash

lily58

Only the main 5x3 alphas and the inner 3 thumb keys are used.

To build for this keyboard,

make lily58:manna-harbour_miryoku:flash

moonlander

The main 5x3 alphas are used as usual. The primary, secondary, and tertiary thumb keys are the closest piano key, middle piano key, and the innermost key of the partial bottom row, respectively. The remaining keys are unused.

To build for this keyboard,

make moonlander:manna-harbour_miryoku:flash

pluckey

Only the main 5x3 alphas and the main 3 thumb keys are used.

To build for this keyboard,

make pluckey:manna-harbour_miryoku:flash

redox_w

Only the main 5x3 alphas and the main 3 thumb keys are used.

To build for this keyboard,

make redox_w:manna-harbour_miryoku:flash

sofle

To build for this keyboard,

make sofle:manna-harbour_miryoku:flash

splitkb/kyria

Only the main 5x3 alphas and the middle 3 lower thumb keys are used.

An alternative subset mapping is also provided with the thumb keys shifted one position in the direction of thumb extension. To select this mapping, append MIRYOKU_MAPPING=EXTENDED_THUMBS to the make command line when building.

To build for this keyboard,

make splitkb/kyria:manna-harbour_miryoku:flash
make splitkb/kyria:manna-harbour_miryoku:flash MIRYOKU_MAPPING=EXTENDED_THUMBS # extended thumb position

torn

To build for this keyboard,

make torn:manna-harbour_miryoku:flash

Additional and Experimental Features

Thumb Combos

MIRYOKU_KLUDGE_THUMBCOMBOS=yes

Combo the primary and secondary thumb keys to emulate the tertiary thumb key. Can be used on keyboards with missing or hard to reach tertiary thumb keys or for compatibility with same. Requires suitable keycaps to enable the thumb to press both keys simultaneously.

Bilateral Combinations

• Bilateral Combinations

Retro Shift

• Retro Shift