Reply to: Undo in XMAX 5.5January 4, 2010 at 6:35 pm
Running a single macro is normally considered to be one undo-able action by XMAX, and so in most cases pressing Ctrl+Z should undo the entire script. If this is not the case for you then we'd need to see the script(s) that are being run to give an exact answer as to why this is not the case for you.
You may wish to have a look at the API ActiveDocument.UndoClear() as it may be useful in your particular situation (hard to tell). That is the only API we have that allows you to manipulate the undo history directly (by deleting it).