Keyboard · Apps

Reassign individual keys or build multi-step macros with a companion app

Most keyboards with a companion app allow remapping any key to a different keystroke, a launched application, a system action, or a recorded multi-step macro, with the configuration saved either to the app's software profile or the keyboard's own onboard memory.

What you should know

  • Install the manufacturer's companion app and open its key mapping or customization panel, which typically shows a visual layout of the keyboard to click into.
  • Select the key to remap, then choose a new function: another keystroke, a text snippet, an application shortcut, a media control, or a recorded macro of multiple keystrokes played back in sequence.
  • Save the profile to onboard memory if the keyboard supports it, so custom mappings persist when used with a different computer that doesn't have the companion app installed.
  • Set up per-application profiles if supported, so the same physical key can perform different actions depending on which program is currently focused.

Remapping core keys like Ctrl, Alt, or Escape can make a keyboard difficult to use for troubleshooting elsewhere (such as in a BIOS/UEFI screen or during OS installation) since those environments don't read the companion app's software-level remapping.

Why it matters

Key remapping turns underused keys into shortcuts for frequent actions — launching an app, pasting a common snippet, or triggering a multi-step macro — and for people who spend most of the day typing, moving even a few common actions onto dedicated keys measurably cuts down on repetitive mouse trips and menu navigation.

Best practices

  • Avoid remapping frequently needed system keys (Escape, Ctrl, Alt, Tab) unless you're certain you won't need their default behavior in software the companion app doesn't run in, like a BIOS screen.
  • Document or export your custom mapping profile after setting it up, since a factory reset or major firmware update can occasionally clear onboard-stored configurations.
  • Build macros for genuinely repetitive multi-step actions rather than single keystrokes, which are usually better served by a simple remap.

Common problems and fixes

Remapped key works in some applications but not others
Check whether the mapping was saved as an application-specific profile rather than a global one — some companion apps default new profiles to a single detected application.
Custom mapping disappears after connecting to a different computer
The profile was likely saved only in the companion app's local software configuration; re-save it to the keyboard's onboard memory if that option is available, so it travels with the hardware.

Tips and tricks

  • Remap a rarely used key (like Caps Lock) to a frequently needed function such as Escape or a dedicated mute key — Caps Lock is one of the most commonly repurposed keys precisely because it's rarely used for its original purpose.

Frequently asked questions

Do remapped keys work before the operating system loads, like in BIOS?

No — software-level remapping through a companion app only takes effect once the operating system and app are running; BIOS/UEFI screens and boot menus will always see the keyboard's original, unmapped key layout.