Sure. You can do that:
[Media Type]=[Audio] ([Album]="bonus track" or [Album]="edition") ~expand="Album Artist (Auto)"
~expand does it to whatever "search" is added "before" it (to the left of it in a written-out search expression, or above it in the wizard) when it gets to that step.
You can even do an ~expand and then re-limit or re-sort the list "afterwards" if you want.
You'll almost certainly want to use [Album Artist (Auto)] to do the expand, and not just [Album Artist]. The latter tag is designed to be left blank sometimes. So, if you have any where it is blank, then the ~expand will match ALL files where it is blank, which is probably not your goal. Album Artist (Auto) works. You have to put field names that have spaces in them in quotes,
as Matt described when he introduced (and then fixed) the feature.