Dear ayman Eldyasty,
Hope you are doing great, some of the information about the Plus Family is secured under NDA (Non Disclosure Agreement) this means that all information should be shared using secured communication channels and only delivered to customers with active signed NDA, if you have NDA please create an account in DocStore and request the full documentation of the product in section 9.3 explains the level switching and how it should be done. if you have more questions I can guide you through the data sheet but I can no explicitly tell you the procedure because this is a public forum so this information should only be delivered as I have mentioned to customers with NDA.
if you have any question let me know.
Have a great day !
BR
Jonathan