Gets or sets the handle of the master being edited in master options.
Namespace: Masters.OptionsEditor.MultipleSelection
ActionScript.SetProperty(Masters.OptionsEditor.MultipleSelection.MasterOptionsHandles,[value])
http://[ip]:4430/titan/get/2/Masters/OptionsEditor/MultipleSelection/MasterOptionsHandles
POST /titan/set/2/Masters/OptionsEditor/MultipleSelection/MasterOptionsHandles