How to run a jobs in Staging library?

how to run a jobs in Staging library?

production jobs can not run in  Staging  library. we can can through only override library.
To run jobs in Staging library first we Fetch the job and save it to override library then
only we can run the job.

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After logging in to ca7 in ca7 command line give jcl
then an pannel is open and it contain fallowing options
 1.Function:__________
       The options in this are
         Add
         upd
         Fetch
         Save
         List
 2.Jobname:___________
 3.Dsn:_________
 4.Id:_________

In Function give Fetch,give the jobname and
give id as 252(this is standred for  Staging   library) Fress enter
it shows fetch function success.
then go bact to pannel by pressing f3
then in function give Save(To Save  to override library ),
jobname, id as 254(this is stranded for override library) press enter
it shows Save function success.
Then to cheque the job in override library again go back to pannel
give list(To cheque) in function and press enter
then automatically display jobname and id as 254