Hi Eileen

Thanks for posting in the community. You can undo by pressing ctl+z or command+z or by using the undo arrow in the top toolbar!

HI Guys hope someone can assist
I no longer have  undo and redo in the top toolbar. it used to be there but as of today it is missing. 
Any idea how i get it back?

I agree.  Please return the undo and redo buttons to where they were.  If not, please add a feature to allow users to customize their own toolbars.  The constant changing is really disruptive when I have a muscle memory flow going.  

The UI should be developed per user preference and not at the pleasure of the developer.

Hi ​@mugelbbub and ​@Jason Beard, 

Thank you for posting in the Lucid Community and for your feedback! I have converted this feedback into an idea here: 
 

 You can upvote this idea and comment any additional insight or details you would like to share about your use case. We would love to hear from you!