Update your old PGNs (bring them up to PGN 2.0) adding a PAT campaign and it’s 4 Ad Groups:
You can also use this on already existing PGN 2.0 in order to update your price/rating segmenting of you BRAND and CATEGORY Ad Groups (remember to archive “old” targets first!).
Or revisit PGNs for which you have previously excluded some Ad Groups (see below).