Disable global undo stacks

Greetings,

It would be great to have the option to disable global undo stacks so that the script editor and the 3D viewport would have their own history stacks. I find it hard to work with scripts when jumping in between the 3D viewport and script editor and using undo when both are using the same stack. Disabling Global Undo in the prefs does not fix this issue.

Cheers,