Hi,

Could you please tell me how to undo an operation that I did on Mac.

The regular Command+Z doesn't seem to work.

Thanks [Image: https://forum.lrtimelapse.com/images/smilies/smile.gif]

No You just choose edit option from the menu and click on undo from the items listed. This action would generally undo the last action. Using Command+Z is another option to be tried instead of undo. If this option doesn't work,it might be due to some system errors. Try using Command+Z after refreshing the system. Most probably it seem to work. If the problem persists still try contacting the customer service team of Mac system.