With the server's schema naming each expression field's allowed constants
and variables, an expression field opens in a plain form:
- a value that is one of the constants is a dropdown (Relaxed, Strict,
Off), with Custom expression… for anything else;
- a condition that is one comparison reads "Port on this server / is /
25", with the variable picked from the ones the field allows;
- a line above says the whole thing in words when it can ("Relaxed when
port on this server is 25; otherwise off").
What the form can't read stays as text, and Edit as text gives the full
IF / THEN / ELSE editor back. Without hints from the server the field is
unchanged.
jcoffey-dev