Vpn l2tp remote-access name servers in different VRF

General questions
,
1

Is there any way to assign different name servers for subscribers terminated in different VRF ?
vpn l2tp remote-access name-server sets name server address(es) for all ppp negotiations. We need server a.b.c.d in vrf FOO and server e.f.g.h - in vrf BAR for example.

2

You can use radius attributes MS-Primary-DNS-Server and MS-Secondary-DNS-Server