Hi Thanks for quick response.
I tried with user preferences using the property glide.ui.polaris.use but I couldn't be able to achieve this

Can you share in detail what you tried than? Here it works fine.

Kind regards,
Mark

Hello @Aarvii is here 

It is not possible to show the option only for admins. Usually, I would not worry about having these options for admin as generally admin users can create the user preference manually in user preference table.

If you still want to have option for admins to switch UI, then simple workaround would be to create two modules (application navigator) in self-service or any other application and have it's visibility restricted only to admins.

1. Name: Switch to UI16

Type: URL

URL: /nav_to.do?sysparm_userpref_glide.ui.polaris.use=false

2. Name: Switch to Polaris UI

Type: URL

URL: /nav_to.do?sysparm_userpref_glide.ui.polaris.use=true

Thanks,

Ali

This worked great- thanks!

Instead of mapping it to a module, I made it a custom slashcommand for SNUtils. Either way I can confirm this only changes the preference for the user and not the entire system which for me is ideal.