電力設計 > Using Diagram > Undo Redo Operations in Diagram
  
Undo Redo Operations in Diagram
To limit the number of undo and redo action to fewer than the default of 50, set the general_undo_stack_limit configuration option to a lower number. When available, Undo and Redo commands appear on the menus.
Undo and redo operations are not available for the following commands:
Edit Menu Commands
Edit > Transfer All Connections
Edit > Cable Contents > Add Wires
Edit > Cable Contents > Remove Wires
Edit > Highway Wires > Add Wires
Edit > Highway Wires > Remove Wires
Edit > Search in diagram
View Menu Commands
View > Update Labels
Insert Menu Commands
Insert > Wire
Insert > Cable
Insert > Highway
Insert > Rail
Insert > Ladder
Insert > Connector > Single View
Insert > Connector > Multi-View
Insert > Connector > Parametric
Insert > Connector > Inline
Insert > Component > Single View
Insert > Component > Multi-View
Insert > Component Group
Insert > Splice > Butt
Insert > Splice > Through
Insert > MVC View
Insert > Component Group View
Insert > Cable Symbol
Format Menu Commands
Format > Spools
Format > Default Wire Spool
Format > Default Cable Spool
Format > Conductor Direction
Format > Multi-View Connector Gallery
Format > Multi-View Component Gallery
Format > Component Group Gallery
Format > Rung Labels
Format > Reference Zones
Info Menu Commands
Info > Wire List
Info > Wire List for Layer
Info > MVC Instance
Info > Component Group
Tools Menu Commands
Tools > Parameters
Tools > Diagram
Tools > Pattern
Tools > Objects
Tools > Terminator Table
Tools > Logical Reference