How distinguish PPTP / L2TP using RADIUS?

Hello,
I have windows server 2012 as radius server and mikrotik with rotuerOS as gateway.
It set up and i can connect using any VPN protocol and account on windows server.

But I want to distinguish PPTP and L2TP connections and not use radius server for PPTP. How can I accomplish this?

And another one thing: it is possible to apply different VPN profiles depends on groups on windows server? I want to give different IP for different groups and etc.