not sure you can Look-Up while scanning,,
in manual you can scroll through the TGs you have stored,but a wild card wont have any pre-programed
info as far as what ID are hot and the sequencing,
if i remember right there is a set step in TGs..like 32 or 42..something like that..
the WILDCARD will only open the radio up to recieve all TGs that go active(at random when ever that user,on a given TG keys up..
without the wildcard you will only receive the TGs you have programed,and the radio will not look-stop on TGs that are not allowed..