How is it possible to change a labels caption in runtime when you press a button on the same dialog?

/did -a <dialogname> <id> <new text>

won't that only add text to the existing label?
if it does then delete it first with did -r <dialogname> <id>

or combine them
did -ra <dialogname> <id> <newtext>
(if that works, dunnow)

yes, combine r (clear) and a (add) to get "clear & add text"

He said "label captions" and is probably referring to a "text control" in mirc. You don't need to clear the text in a text control (like you need to in editboxes).

ok then, my fault, i didn't know there was a difference between them.