Next step is to set up the History List for Instant Organize so that previous Instant Organizes can easily be redone. Setting up the structure for this has a previous example I can borrow from - that being the history list of the Open File dialog.
While doing this, the OnCaretMove bug I thought I solved on April 16th resurfaced. It had popped up in the last few days, but I couldn’t isolate exactly when it happened. Finally tonight, I’ve got a file and a set of operations that can make it happen consistently, which now makes it possible to trace to what is wrong.