View source for SET UNDO

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{{Command|syntax=SET_UNDO <undo type>
|description=:Set an undo state to return to if the user presses <ctrl> Z. You must specify what type of changes you would like to be able to undo, this is controlled by the <undo type> parameter.

|param1=<undo type>|param1_desc=One of the following
:* [[TOOL_NEW]]
:* [[TOOL_DEL]]
:* [[TOOL_MOVE]]
:* [[OP_NEW]]
:* [[OP_DEL]]
:* [[OP_MOVE]]
:* [[PROC_NEW]]
:* [[PROC_DEL]]
:* [[PROC_MOVE]]
:* [[WG_NEW]]
:* [[WG_DEL]]
:* [[WG_MOD]]
:* [[CS_NEW]]
:* [[CS_DEL]]
:* [[CS_MOD]]
}}

===Example===
:SET_UNDO WG_MOD
:SET_UNDO CS_MOD
<br>
:This sets two undo states, for WG_MOD (modifications to the workgroup) and CS_MOD (modifications to the CS). If the user presses <CTRL>z, then any changes to the WorkGroup and/or CS will be undone, but other changes (such as creating a new operation) will not be undone.