Users may have multiple variants of the same “one-time” expense, that occurs at different milestones.

Ex: I have 3 moves planned. Each time a move occurs, I have a $10k “moving costs” expense mapped to the milestone of the home purchase. This requires me to have three seperate expenses: Move #1 Costs, Move #2 Costs, Move #3 costs.

My suggestion is to allow “one-time” expenses to be mapped to multiple years or milestones. (Essentially, a recurring expense that occurs at specific dates, rather than following a specific schedule).