Setting a longer Undo / Redo in Photoshop
If you are like me, you love experimenting in photoshop. However, sometimes our experiments go wrong and you need to Undo them. By default, Photoshop only saves 20 history steps to save on computing power. So here is a little tutorial on how to set you maximum History steps higher.
When in performance Look to the right hand part of the window and look for the “History States”
In my case, I need lots of undo steps, so i set my History States to 500.
And Voila, more undo steps! make sure to set your history steps to what your computer can handle.