Tried V and Alt + V, neither work at all.
Does this work for you?

Yeah, I think that will only work if the size of the wall meshes matches the editor snapping setting ( ie 100 units etc ).
The snapping in UE is not at all the same as other editors.
You can move the pivot to a point on the mesh. Then move the mesh.
But accuracy is not that great to say the least. And key binds to move a pivot are nonsensical to the point I’d have to look them up.
Also the pivot change doesn’t persist with an editor restart if I remember correctly.
Best way to work is to make assets the correct size as it was already suggested.
