How to set Caps or Alt_R to input-layout-switch'er?

meinherz

I was trying setxkbmap
setxkbmap -layout "mars,moon" -option "grp:(caps_lock_)toggle"
it does not work.
And in dconf, I tried all the google recipes. I'm getting close to being disappointed. Is it even possible, maybe I'm wasting my time looking for a solution?

Budgie 4.2

meinherz

As a temporary solution, I chose the "Menu" key to switch the layout. It's a pity that no one knows how to set up switching to "Caps Lock" or "Right Alt" in Budgie.

kirienko

I found a persistent solution that does the following:

Caps Lock switches keyboard layout (in my case between us and ru)
AltGr aka ralt is the Compose Key
Ctrl + Alt + Del combination kills the X-session

To do this, I use the command
setxkbmap -option grp:caps_toggle,compose:ralt,terminate:ctrl_alt_bksp,grp_led:caps us,ru

To make it persistent, I added it to Autostart in the "Budgie Settings" as a command.