Sketch tab options

Options - Sketch

Checking the option "Use undo history list", will make the undo, redo history available  on the edit drawing tab, if this option is not selected the undo function will "remember" only the last action.

With Flip/Mirror all sequences of play checked, the whole play will be flipped or mirrored instead of just the current sequence, when flipping or mirroring in the edit drawing tab.

Pressing the OK button will store the changes and bring you back to the main window.

Pressing the Apply button will store your changes.

The Cancel button will bring you back to the main window, no changes will be made.