Authorazation of schedule background job only

Dear Team,

I have given the authorazation of trans. sm36 to all my Users in production server.

now they can schedule job and when they save background job .It automateclly relesae.

I want users schedule background job only. but they can,t be released those job. Only i will these relesae .

So which authorazation object i should remove from users side. i,e S_BTCH_ADM and S_BTCH_JOB and value

Pooja