To either edit or disable the supervision you’ll have to login as a Safety or Admin user first (any user that has safety-commisioning-permissions)
After that you’ll have options from Robotstudio for example.
Why would you want to edit or disable that zone?
How can I define the tool zone for this robot , please instruct me
In Robot Studio, you can sign in as Safety User and then get write access. Then go into Safety under the Configuration Ribbon. Once there, you can add tools and then add tool geometries based on the shape of your gripper. These are then taken into account for Safe Move. After you finish making adjustments, you will have to write to controller and then do a warmstart in order for the changes to take effect.
If you don’t know how to do this, I would highly recommend you to do a SafeMove-course provided by ABB or at least read and understand the documentation regarding SafeMove and Safety.
