Disable middle-mouse drag for markups

[jamesobutler (James Butler)]

This post has information on markups undo/redo

New Markups functionality retains unset control point positions

Actually, the undo functionality is already available in Slicer. You can enable undo/redo for fiducial nodes by copy-pasting these lines into the Python console: # Enable undo for the scene slicer.mrmlScene.SetUndoOn() # Enable undo for markups fiducial nodes defaultMarkupsNode = slicer.mrmlScene.GetDefaultNodeByClass("vtkMRMLMarkupsFiducialNode") if not defaultMarkupsNode: defaultMarkupsNode = slicer.vtkMRMLMarkupsFiducialNode() slicer.mrmlScene.AddDefaultNode(defaultMarkupsNode) …