How to pass additional property value with operator_menu_enum on execute? I have an operator with couple EnumProperty properties, all of them enumerate the same item list. I'd like to know which property changed on execution from layout.operator_menu_enum().

With simple layout.operator() I can set it's property like this layout.operator(...).some_property = "value", can I do something similar with operator_menu_enum?
Not Currently.

(2.79. sept 12-2017) operator_menu_enum(....) doesn't return the operator reference, so assigning something to layout.operator_menu_enum(....).some_property='something' will fail.

would be super handy if it did.