I'd like to give my UI controls names like TRIG MODE (Kbd / GM Drum Map). So I used the field Text for that but it turned out this doesn't exactly do what I want: Show this string when I add a UI control to my Cubase Quick Controls. What's shown there, is the ID name of the UI element, So I tried to put my nice readable string into the ID field. As you'd expect, it won't accept that input and tells me to not use blank spaces. But to my surprise, when I only entered TRIG MODE by accident, it was accepted. So it seems whitespace is not a problem but rather the parentheses and/or slash or maybe the character count exceeded a given limit.
So I wonder: What kind of characters are accepted for IDs? Can stuff like parentheses and slashes be used but only when given as some entity?