Yes, just like a whiskey level, keep the left end on the left, etc., an old carpenter trick.
The one digital level device I really like is made for pipe fitters, with a V shaped magnetic base. It has a built in spring center punch, you position where you want via it's readout, push a button to let the punch make a mark, and now you have a reference point for whatever degree of rotation you need. I used mine when I was in the sideline biz of fabbing large solar panel array mounting structures, designed of course to be lifted via crane, since I have one.
Harbor Freight makes a laser/ whiskey level combo, and it's a good tool for setting blade pitch for the ground adjustable props: a simple jig that ensures it's in the same position on each blade, then you shine the red dot on the floor (with the plane firmly chocked, but it doesn't need to be level) and make a pencil mark on the floor, when subsequent marks for the other blade/blades all match, all are at the same pitch. Very small movements of a blade will mean large movements of the dot, making it a very precise way to set pitch.