# QMK Features QMK has a staggering number of features for building your keyboard. It can take some time to understand all of them and determine which one will achieve your goal. * [Advanced Keycodes](feature_advanced_keycodes.md) - Change layers, dual-action keys, and more. Go beyond typing simple characters. * [Audio](feature_audio.md) - Connect a speaker to your keyboard for audio feedback, midi support, and music mode. * [Auto Shift](feature_auto_shift.md) - Tap for the normal key, hold slightly longer for its shifted state. * [Backlight](feature_backlight.md) - LED lighting support for your keyboard. * [Bootmagic](feature_bootmagic.md) - Adjust the behavior of your keyboard using hotkeys. * [Combos](feature_combo.md) - Custom actions for multiple key holds. * [Command](feature_command.md) - Runtime version of bootmagic (Formerly known as "Magic"). * [Dynamic Macros](feature_dynamic_macros.md) - Record and playback macros from the keyboard itself. * [Encoders](feature_encoders.md) - Rotary encoders! * [Grave Escape](feature_grave_esc.md) - Lets you use a single key for Esc and Grave. * [HD44780 LCD Display](feature_hd44780.md) - Support for LCD character displays using the HD44780 standard. * [Key Lock](feature_key_lock.md) - Lock a key in the "down" state. * [Layouts](feature_layouts.md) - Use one keymap with any keyboard that supports your layout. * [Leader Key](feature_leader_key.md) - Tap the leader key followed by a sequence to trigger custom behavior. * [LED Matrix](feature_led_matrix.md) - LED Matrix single color lights for per key lighting (Single Color, not RGB). * [Macros](feature_macros.md) - Send multiple key presses when pressing only one physical key. * [Mouse keys](feature_mouse_keys.md) - Control your mouse pointer from your keyboard. * [One Shot Keys](feature_advanced_keycodes.md#one-shot-keys) - Sticky Keys, lets hit a key rather than holding it. * [Pointing Device](feature_pointing_device.md) - Framework for connecting your custom pointing device to your keyboard. * [PS2 Mouse](feature_ps2_mouse.md) - Driver for connecting a PS/2 mouse directly to your keyboard. * [RGB Light](feature_rgblight.md) - RGB lighting for your keyboard. * [RGB Matrix](feature_rgb_matrix.md) - RGB Matrix lights for per key lighting. * [Space Cadet](feature_space_cadet.md) - Use your left/right shift keys to type parenthesis and brackets. * [Stenography](feature_stenography.md) - Put your keyboard into Plover mode for stenography use. * [Swap Hands](feature_swap_hands.md) - Mirror your keyboard for one handed usage. * [Tap Dance](feature_tap_dance.md) - Make a single key do as many things as you want. * [Terminal](feature_terminal.md) - CLI interface to the internals of your keyboard. * [Thermal Printer](feature_thermal_printer.md) - Connect a thermal printer to your keyboard to be able to toggle on a printed log of everything you type. * [Unicode](feature_unicode.md) - Unicode input support. * [Userspace](feature_userspace.md) - Share code between different keymaps and keyboards. ee/?h=4.0.3-rc1&id=9773f5386e655c7c6fb42fffc1b948d8c1595342'>root/tools/python/xen/xend/xenstore/xstransact.py
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