Simple past tense and past participle of stage-manage.

Carefully controlled or directed so as to ensure a particular desired appearance or outcome, especially an artificial one.

A person responsible for the organization of a stage production, and who is in charge of the stage during the performance

plural of stage manager

(literally) To manage or organise the operation of a theatrical stage; to act as stage manager.

plural of assistant stage manager

(theater) A backstage worker whose main responsibility is the maintenance and supply of props.