The Command History Player gives access to the Power Surfacing undo stack where you can use several different options to review the command history of a subD model. You can play through the command stack manually or automatically, forward or backward, from any position. You can select any command in the list to see what the model looks like at that particular point in its creation process.  

Viewing Only Mode allows you to investigate creation workflows of existing models without altering the mesh. When unchecked, you can continue editing the mesh from any point in the stack.  

Reload Mesh State will reload the mesh into the state it was in when you last opened the player. If you are experimenting with different solutions to your model, you may save them though the Power Surfacing menu > Save > Save Scene. This will save the model in the native .pModel format.  

The Speed slider lets you adjust playback speed when using Play Forward/Pause or Play Backward/Pause.

The Step Count slider allows you to specify how many steps to skip when using step forwards or backwards by step count and also when using the regular Play/Pause or Play Backward/Pause.  A maximum of nine steps can be skipped at a time.

Go to start sets the stack to the Initial state.

Step backward by step count allows you to step backward through the stack manually one command at a time or by multiples if Step Count is more than 1.

Play Backward/Pause will automatically play back through the command stack one command at a time or by multiples if Step Count is more than 1. You may pause playback and continue by pressing the same button.  

Step forward by step count allows you to step forward through the stack manually one command at a time or by multiples if Step Count is more than 1.

Go to End sets the current command to the final command.

Created with the Personal Edition of HelpNDoc: Create cross-platform Qt Help files