I and possibly other users keep track of future bills and auto-transfers by grouping them into dummy split transactions (each bill is a split line) grouped by intervals between income events. When such a transaction becomes actual, I move the split lines to the next month's group. This requires a Notepad file to hold them for moving.
There would be no need for such a file if the split lines could be dragged by the mouse from one position in a dummy transaction (opened by Ctrl+S) to another, and also from one dummy transaction to another (not yet opened, on the main register). This would be an excellent feature for users, and as far as I know, it would be the first use of drag and drop in the Quicken Classic application software. Other uses may become evident in the future. Here is an example screen: