I like using Compose key. The problem is that large part of my text being typed in non-english layout. This means that some symbols messed up, and most isn't even present (i.e. latin characters). Adding a custom combinations to the «.XCompose» isn't even a way — too many combinations should be rewritten (I am using a custom file with many comfort additions).
It would be great if just after I pressed the Compose a keyboard layout was switched to English, and after a Compose combination done, switched back. So, that I could use English compose combinations in non-English layout. Is there a way to implement it?