Here are a few of the actions I've have performed and instantly realized I should have triple checked that action I just took (clicked).
-Renaming a batch of files (ctrl M) with not exactly the best name. So I rename them again, with the adjustments I left out of the first name change.
-Clicking on an image before changing the screen to show only selected images. So, I go back thru the photos and re-select.
-Untagging all the images (cntl -) then realizing there is one more operation I should have performed before untagging.
-Replacing a word or other data using Find and Replace (shift ctrl F), then realizing I forgot to click Whole Words, or Case Sensitive. So I do it again the right way.
The need to undo and redo actions like this are solely my problem but the undo feature sometimes helps.
Thanks. You have a great program that helps enormously. Glad I ran across it. --marcopolo