[TYPO3-english] Switch User Function for non Admins

[Sven Jürgens]

Hello,

is there any possibility to grant access to the SwitchUser function to 
Non Admins ?

Maybe a hook or an extension ?

The Background:
in a bigger T3 Installation with lot of Users with differnet Userrights,
it would be great that a "Phone - Supporter" can see, which fields and 
forms the User cann use.

And of courcse the Phone Supporter should not switch to an AdminUser.

Best regards,
Sven