According to the Paramount Studio Group web site, Stage 4 was used for Star Trek 5 as well as Deep Space Nine.
This is the period during which Star Trek V filmed. It is not known what was on this stage.
During the years of Star Trek: Deep Space Nine, Stage 4 was one of the two primary stages for the show.
Specifically, Stage 4 housed Ops, crew quarters, and the cargo bay.
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