I wish to signal you what i suppose is a bug.
I use a lot key composition in Linux, that is, for example, the ones defined in /usr/share/X11/locale/en_US.UTF-8/Compose.
In TexMacs in general they work, but i noticed the key-composition dies after i try to enter an Insert->Link->InputField + Insert->Link->EvaluableField + Inert->Link->FieldReference.
If i restart TexMacs and open the same file then Key-composition works.
bye