How to delete module attribute

innebandy Korea, South ✭✭
I've been testing RAPID module declarations by changing attributes.  And I found a RAPID manual saying "READONLY: The module cannot be modified, but the attribute can be removed." But there is no way to remove the attribute using the FlexPendant. I could find a way. How can I do that on the FlexPendant without using RobotStudio?