# select all geo that you want to have a mask and run the script – this will create a 3delight mask aov for each piece. import pymel.core as pm selection = pm.ls(sl = True) for maskobject in selection: pm.createNode(‘3DelightMaskSet’,n=’Mask_’ + maskobject) cmds.sets( str(maskobject), add=’Mask_’ + maskobject )