Edit Channel database manually - HOW?

#1
I need to manually edit the channel database.

I know how to do it in MyTheatre (obviously a different program), but I have Mytheatre, and love ProgDVB. But how do you do it?

I added this in Mytheatre channels.

DELETE * FROM PIDs WHERE opt1=6166;
DELETE * FROM PIDs WHERE opt1=6165;

How do i do similar in ProgDVB please