Allow only one mobile device/ Restrict to maximum one mobile device ZXmoble

Hello,

I would like to know if i can allow email id to only one particular mobile device OR can restrict email account to have only max 1 mobile device.

For testing i have configured one test email in iphone via Exchange and sent a mail , now mobile device is showing in below :-

Webmail --> preferences -- > Connected Devices & Apps.
Also in
Admin -> ZeXtras -->> ZxMobile -> Registered Devices .

But how to do specifically which i have mentioned above .

Thank you .