any way to stack raw+jpg pairs or filter by multiple variables

I'm new to Capture one.  I  normally shoot in raw+jpeg pairs.  In other software I've used, I can stack raw+jpeg pairs so I'm not dealing with so many files.  Is there a way to do this in capture One?  Can't seem to find a way to do it.  Alternatively, is there a way to filter files for export using multiple filters.  ie. if I only want to export raw files that have no star ratings?  I can only seem to filter by one variable at a time, and I'm stuck with my jpeg files being mixed with my raws if I select star ratings as my variable.

Thanks,

--Mark