new_contents: # Add objects from selected deformer
  curSel = cmds.ls(sl=1,fl=1)
  for sel in curSel[0:-1]:
  	cmds.deformer(curSel[-1],e=1,g=sel)
  
  
  # Remove objects from selected deformer
  curSel = cmds.ls(sl=1,fl=1)
  for sel in curSel[0:-1]:
  	cmds.deformer(curSel[-1],e=1,g=sel,rm=1)
  
subject: Create addRmDeformerInfluence.py