> you get "KeyPress ISO_Prev_Group" (or ISO_Next_Group. I get "prev", not sure why
The xkb rules send ISO_Next_Group if you press the relevent keys in one order and ISO_Prev_Group if you press them in the other order.
Eg, given group(ctrls_toggle), LCtrl+RCtrl does next and RCtrl+LCtrl does prev.
> you get "KeyPress ISO_Prev_Group" (or ISO_Next_Group. I get "prev", not sure why
The xkb rules send ISO_Next_Group if you press the relevent keys in one
order and ISO_Prev_Group if you press them in the other order.
Eg, given group(ctrls_ toggle) , LCtrl+RCtrl does next and RCtrl+LCtrl does prev.