ALT + tab button?

[aschurr0]

Maybe this isn't something that's able to be done but i was wondering if it's possible to bind one of the keys to alt + tab. I attempted to do this on both the Kinesis Web UI and this one but could not figure out how to do so. Hoping there's a way to do it. Thanks! :)

[nickcoutsos]

You can definitely do it, with the caveat that the behavior you're looking might need a little more.

To start off, although some people new to ZMK might instinctively reach for macros you can bind Alt+Tab to a single key by applying a modifier as shown below:

The initial binding &kp TAB:

Looking at the keybind in the binding dialog:

Inspecting the TAB keycode

Applying the LALT modifier

The new key binding

Note: I'm on macos, so ALT is shown here using a different symbol.

With this keybind you can press this key and send Alt + Tab to your computer.

Things to consider

I think a typical use case is for people to switch windows by holding Alt, then tapping Tab until the desired is reached, then finally releasing Alt -- but that doesn't really work with a single key. With this keybinding you're effectively getting "switch to last window" with each keypress. I don't know what's become of it but someone was working on a ZMK behavior to handle this: zmkfirmware/zmk#1366