Set a SAP Background Job

Hi,

We have a below requirement to setup a SAP Background job

1. Background job "A" runs daily for all seven days

2. The requirement is to schedule one more "B" job immediately after completion of above job "A", but this job need to be executed only on Thursday.

How do we do this?

3. Also Schedule the "B" job daily (Friday to Wednesday) excluding Thursday

How do we do this?

Thanks,

Sameer