Setting layers and levels

- [Instructor] So we're staying in our 06_OFFICE.rvt file…in Revit 2017.…And as you can see, I've left the Revit model…in the same state it was at the end of the previous video.…So what we're going to do now is we're going to…remove the CAD file again.…Now you can do this in two ways.…You can go up here.…You can undo what you did last,…and that will obviously cancel the most recent action…as it says at the top of the screen there.…Or you can just hover over the model itself.…So if I select it like that,…can you see?…I can select the CAD file from the model.…

So I can select from the model itself.…Like that.…And then you'll notice I get a contextual ribbon…up here.…There's a little cross there, delete,…and that will allow me to delete it obviously…from the model itself.…So, I'm removing it in that way.…Now it's up to you whichever way you do that.…Ideally, you should really use Undo,…because that removes the whole of the last action.…But you can delete a CAD file if you want to.…So we're back to square one again.…Gonna go to the Insert tab on the ribbon.…