As Leathermag coined the term "virtual adjustment" I have just stuck with it.

it's just make sure there is clearance. can be done buy just checking to see if the rocker arms can wiggle. This is not a replacement for proper adjustment just a quick way to check for basic clearance. Then do a compression check to see if the engine has any hope before taking a lot more time. Now if the engine is a known engine that was good when pulled, sure take the time to adjust the valves first. Of course if it were known to be good then a compression check would not be needed.

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1977 240D turbo