How to log combined feedings - Glow Baby

Does anyone have experience with combined feedings? We are now at home with out 31 weeker at 36 weeks. Discharge instructions prescribed 2 daily feeds of 24cal/oz preemie formula. Sometimes, the amount of formula isn’t enough to satisfy, so we supplement with additional (pumped) breast milk. However this splits the feed into two smaller feeds in Tracker. I’m thinking this is probably skewing our average feeds lower in the analysis (both size and time between feeds).

Does anyone have experience or advice on how to lump feeds of different kinds (breast/formula/pumped) into a single feed for tracking purposes?

Baby photo attached for “tax”.