Possible to use PPP Profiles?

Is it possible to make use of profiles set on my gateway through the user manager? As far as I can tell, I have to manually configure each user’s rate limit settings in userman in order to control their bandwidth whereas when using the local secrets on the gateway, I can simple choose a profile and all the rate limits are set.

If profiles are not possible, is it possible to set some default rate limits so that each time I create a new client, the rate limit I use the most is pre-configured?

/ppp profiles are not possible.
But User Manager profiles should do their job fine, bandwidth limitation could be applied to any User Manager client (PPP in your case).