Alright, that was pretty cool.
Just in case anybody (for some strange reason) has the same question in the future:
menu channel {
.Title
..$submenu($titlealias($1))
}
alias titlealias {
if (% [ $+ m $+ [ $1 ] $+ _release ]) return $ifmatch : pop % [ $+ m $+ [ $1 ] $+ _name ] % [ $+ m $+ [ $1 ] $+ _size ]
}
Wims, DJ_Sol: Thank you both for the help!