add_menu_variable#
- Layout.add_menu_variable(name, values, is_param=False, index=0)#
 Add a menu variable.
- Parameters:
 - name
str Variable name.
- values
list[str,int,float,complex,Value] Each element can be any type that can be converted to a
Valueinstance.- is_parambool, default: 
False Whether the new variable is a parameter. The default is
False, which means it is a local variable.- index
int, default: 0 Index of the value that is initially selected.
- name