For anyone that is posting feature requests, they're not going to get done if you post it here.
Check if there's already a ticket on:
Custom Query ? Mangler
If there isn't, you can create one yourself here:
http://www.mangler.org/trac/newticket
You'll probably need an account though.
That being said, alpha4 will be out soon that fixes the Galaxy S issue, some crashes when talking in queue mode channels, and other small bugfixes.