I would like to be able to have more undo steps available. Is there a way to do this?
You can quickly and easily enable or disable the ability to use undo, set the maximum number of undos possible, as well as a duration before undo states are recorded.
To increase the number of undos available
Select Edit> Preferences from the menu.
In the Category column click on the word General.
Change the value for Maximum Undos to your preference.
Undo - Click in the Enable check box to enable Undos and Redos. See Undo and Redo.
Maximum Undos - Specify how many levels of Undo and Redo you want available, from 1 to 100. Undo files are saved in the Undo Directory.
Record undo state only if idle longer than - Use this setting to control how often undo states are recorded. If set to 0 milliseconds, an undo state is recorded every time a change is made to a plan.
If set to a number larger than 0, an undo state is recorded if the specified amount of time has elapsed since the last change was made. Depending on the time specified and the speed work is being done, multiple changes might be reversed with one undo.
This setting can have a significant effect on the performance of the undo feature when working with large plans.