If you want the present to be different from the past, study the past.
The purpose of the technical rehearsal is to make a final confirmation and integration of all light and sound cues, special effects, scene changes, and curtain pulling. Every mechanical effect that should happen during the performance should happen at the technical rehearsal, and just the way it is to happen in performance.
It is during the “tech” that you will probably move from the director’s side to your work area, usually in the wings, but possibly in a booth behind the audience. Advances in technology now allow stage managers to work anywhere they want to set their promptbooks.
Traditionally, the tech is the time ...