Reply To: Unable to move verts along the local axis.

@frosty_beard unfortunately when I click on it Youtube tells me the video is marked as private and is unviewable. But funny enough the uploaded video here now works! haha

Okay so you got really close to figuring it out. You just need to make a custom transform axis using either a face or an edge.

In your case looks like any face along that plank will do just fine. Pick one and follow the commentary in my picture and you should be all set to move all of those vents down along the ‘normal’ of that plank surface.