Develop module, left-hand panel, History. Open up that section and you'll see a list of adjustments you have made, the most recent being at the top of the list. Choose the step you want to return to and then start making adjustments. Everything above that step will be replaced.

Of course there is!

You don't have to delete an exposure +1 step somewhere in the middle,just change your exposure to something else.

The history step +1 will always be in the history list but it's completely undone (or changed) and all your other changes are preserved.

Frans

There are some other, broader, methods for making use of your History - without destroying the intermediate operations - (beyond just referring to it, to see what you previously have done).

First, if you click on an eariler History step, the subsequent History steps are still there, but greyed-out. Importantly, they remain accessible only for so long as you do NOT make any new edits. Doing so would branch off a fresh, alternative image History which sets off starting from that earlier point - and excludes (erases the memory of) all these subsequently done operations. So it is important to avoid doing that, and to remember to take your history "back to the future" at the first opportunity.

• But while viewing this older image state, if you use the Copy command, this will put whatever selected aspect(s) of this "historical" state you are interested in, onto the Clipboard. Then you can Paste that/those into whatever other image you want; and even, Paste into your same image after you have brought that back up to date.
• If you make a Virtual Copy, this will duplicate all the settings of that image state, as a brand new (separate and persisting) image version. This can become a new starting point for some variant edits, or act as a source for Syncing or Copy-Pasting various image settings from that image state, at your leisure, to wherever you want.
• Also: when you right-click on some past History state (you don't need to return the image itself to this state) you can choose to set this as the "Before" state that gets used, when you do a Before/After comparison, side by side with your current (latest) state of the image.

So, worked example: you edit the image up to point A, where you mess up the WB, then edit it some more up to point B. Then you roll the image's History back to the last step just before point A, where the WB is as you want it, and Copy (just the WB) to the clipboard. Then you roll the image back forward to point B and Paste, assigning your image (which keeps all its other settings up-to-date) the same WB that it formerly had, just before you messed that up.

When I reset photo it does not go back to the original photo instead it goes back to an edited version. I tried to upload again but it says its a duplicate copy

Hi thanks for your reply. Unfortunately it does not revert back to that. It is now a black and white image and will not go back to colour etc =(

I have now deleted it off and imported it again. Have no idea what I did. When I clicked import in History it went back to after I had changed it to black and white and cropped etc.

Thank you =)