Please provide an "undo edit" button in the editor for ArcGIS Sites in Portal for ArcGIS in ArcGIS Enterprise. Currently the only way to undo changes is to not save. This is a problem if I've made 25 changes but the last one I don't like. For example, what if a change a background color to #49a078 but I don't like that color and don't know the previous value. I can't go back unless I don't save and lose all other 24 changes. Saving after every little change becomes quite tedious.