This is a neat idea! We have “reoccurring bills” but I can see how “duplicate this specific bill once, now” would be a useful functionality to add. We will consider this as we continue to improve Splitwise. RegardsMM supported this idea ·MM commented
I would suggest to have a neat checkbox "Add another" besides the "Save" button of a new bill which lets the "Create bill" dialog stay open and resetting the amount and attachments only. So, any properties like "Paid by", "Date", ... will stay the same. This would make entering many bills from a specific day much more simple for the one who paid and gathered all the bills.