Hi everyone,
I would like to ask you a question about TCanvas: can I undo a graphic editing directly on the graphical interface? Like resizing the title with the mouse etc.
CTRL+z does nothing. Thanks for the help!
I do not think it is possible but it would be a nice feature for sure. Could you open a JIRA ticket to keep track of this request?
You are right undo does not exist. The on ly thing you can do is: while modifying interactively a Canvas you can press ESC to cancel the current editing .
Thank you for your replies. By the way, what is a JIRA ticket? 
It is the bugtracker used by the ROOT team. You can reach it here.