Unique Local Addresses

[Senjuu]

I am currently setting up a network for IPv6. As I need to supply both Unique Local Unicast and Global Unicast addresses, I have a bit of a problem. I get the Global Unicast Addressspace via prefix delegation and allocate them via interface tracking because they are dynamic. The Unique Local Unicast is setup via Router Advertisments und Virtual IPs.

Now to the problem.
Currently I change my rules and the Router Advertisments regularly as the Global Unicast Prefixes change and I would like to know how this could be configured to be done by OPNsense automatically.