Roof anchor - Help!

[bsqwared]

I am trying to create a roof anchor family that hosts to a sloped concrete slab. Got the family to come in as a generic face based model, but realized that the roof anchor comes in Perpendicular to the plane. Anyone know how to adjust the family so that when it is inserted, the anchor remains vertical, but the base adjusts to the sloped plane? Attached here for reference.

Regards,

[bsqwared]

I am going to answer my own question for the benefit of anyone who has had this problem. I was using a generic model-face based family and trying to host the anchor to the structural slab (which was in a different model-hence the face based decision), which was the wrong way to go. By using a generic model-roof hosted family, i am able to check the "always vertical" button in the family parameters and make sure it comes in vertical, and host it to my roof instead of to the face of the structural slab.