I recently bought cubase 10 pro. and when I first went to reverse a sample (or process however) it gave me an option to reverse either JUST the selected audio clip or reverse the selected audio clip and reverse everything else that matches it (is identical). Say I have 3 audio clips in a row that are the same and tried to reverse just one…it would reverse all of them instead after only selecting one…Im pretty sure I clicked the box that says “never show again” and now I can’t find the setting to change it back!!! PLEASE HELP!!! 
Hi
If I understand correctly, you want: Edit > Preferences > Editing > Audio then change the ‘On Processing Shared Clips’ option. As in the screenshot below.
absolute legend thanks