To set Knud’s "assumption" straight:
“
syncfg.si” is the macro that implements TSE’s "Configure SyntaxHilite Mapping Sets:" menu and submenus.
It temporarily redefines the <Ins> key in the menu-invoked list that lets us change the content of a Keyword group.
Any macro programmer can read this in the macro.
The macro has nothing to do with how <Ins> is handled in the editor.
Instead, basic keys like letters, arrow keys, the insert key, and others are hardcoded into the editor itself.
They can be overruled by a user’s .ui file, but still perform their basic function if they are not.
Neat!
Carlo