Capital: see https://forums.mirc.com/ubbthreads.php/topics/249415/ID_uppercase_first_letter#Post249417

Cooldown: If you already have that, then you should know how to add it to other features. If you don't, you just copy over
Code:
if (!%comwait. [ $+ [ $chan ] ]) {
set -u120 %comwait. $+ $chan 1
to the code you want.