Share internet connection from a 3g usb modem over a WAP

[peverix]

Hello

For some private project I want to share a usb 3g connection with different persons.
I came across pfSense but don't know if this is the right tool for it.

We using  a usb 3g modem ( internet connection ) and a wireless access point where the different users will connect on.
Because we have a 2Gb data limit on the internet connection we want to control the amount of data used by the different users.

Is this possible with pfSense ?
And any idea how to do this ?

Regards
Peter