How to add an individual movie to lib on 17.3

I sometimes add an individual movie to the lib without doing an entire update. On early versions (i was on 13.3 till recently) i could navigate files – <source>, highlight the new movie dir, and choose “Scan for new content” in the context menu. That menu appears to be gone in 17.3 (and maybe earlier but i cant tell)
How do i add an individual movie without updating the whole lib? I have 1000+ movies in it so that takes a long time

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