calling second transaction from a bdc prg

Hi experts

I am using a prog for ISU-Transaction EG33 now my requirement is I have to call another transaction IL02 within this transaction my requirement is just to tick a check box.

Another thing here after executing my current prg ( eg33) function location is created after completion of transction ....the same function location need to be used in my second transaction for which whom i am gonna tick tat check box.(single installation)

thanks in advance

any ideas ???