Application Assignment Feature

[smacdav]

To be honest, I wasn't sure whether to put this in "Feature Requests" on the regular forum or in here. In the end, I selected this forum since v1.6 is still a beta. Sorry if you'd rather it was in the Feature Requests forum.

Application Assignment is an awesome feature which, now that I understand it, I use a lot. I was wondering if it would be possible to implement something like "assign to all desktops except...". I have one desktop on which I keep just two applications, one on each monitor. I have other applications that I'd love to have on every desktop except for that one. I know that's a pretty specific use case, but is there any chance that could be brought in?