Set Navlink Proxy location in BP/ Nav-friendly teleporter?

I’m trying to set up a teleportation system for my AI using navlink proxies. I can spawn a navlink proxy actor in blueprint, but the left and right links have a fixed location. Does anyone know how to change their location in blueprint please?

I found these two nodes but I haven’t had any sucess getting them to work yet (not even sure they’re supposed to be used for this purpose). If anyone can shed some light on the issue I’d be grateful!

Failing that, any suggestions you have on setting up a navmesh-friendly teleporter system for AI would be greatly appreciated. Thanks!

It looks like, FNavigationLink, which the PointLinks array of the NavLinkProxy contains, is not Blueprintable as far as I can tell in 4.12. So there would need to be at least some limited code changes to allow for creating, adding or editing SimpleLinks in a script Blueprint or whatever.