Multi-level Undo?

[Peter Reid]

Is there any way of supporting multi-level undo in LiveCode?

My current project provides support for the user to manipulate objects (grouped vector objects).  The user can grab objects, move them around the window, group/ungroup, align, cut, copy, paste and undo.  However the undo is single level only.

Can anyone suggest a way of providing multi-level undo, even if only 3 levels?

Thanks.

Peter
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Peter Reid
Loughborough, UK