What I think you are trying to do here is not possible the way you are thinking about it. I'm assuming that you want to do something like this:

You cannot just move vertices on a solid model in Fusion. Your design is a parametric design (has a timeline, is history-based). You can either:
- change the design recipe by editing it (sketches, extrudes, etc) so that it produces the face and vertex alignment you are after
- you can add features to get you to that point. This could include:
- adding new extrudes to fill in material
- using a Move Face feature to tilt the face so that it aligns
- using a Face Draft feature to do the same
- etc
it's hard to provide more direct help without the model itself. If you can share it here, people can help you more directly
Jeff Strater
Engineering Director