Hey DM Deadman! When asking questions like this, it helps to be specific about which sheet. There are over a dozen sheets for D&D 5e, and even more sheets that deal with the fifth edition of some particular game. However, assuming you are talking about either of the official 5th edition D&D sheets by Roll20, then no. The code of these sheets is proprietary and cannot be altered. That being said, what exactly is your goal here, that simply ignoring those abilities is not a viable solution?