I have this same issue. There is no pulldown option to "Split By" in my split menu. I am only able to split by percentage and nothing else. This is very frustrating because I have several transactions that are combined totals where a set amount is always $625 and I want to split the remainder. If I could do fractions of percentages, I could get close, but I can only do whole number percentages so the total is always off by a few dollars. How can I make this work??