I am still using all af XMLs in layouts folder. just added my 2 next.
All what I am doing when choosing keyboard is to mark another one - marked 2 or even 5 in the settings. keyboard layouts can be easili changed by sliding the keybourd to the right or left - you could turn the SWYPE like that in new PR 1.1 if you had turned it on.

so i just have set Rusnak keyboard, slide it to slovak, go to VI editor, change what i want, go to settings - unmark it, save, mark it, save, go to my app where writing and slide it back from Slovak to Rusnak to see changes.