Many of the people who reach this blog are searching for resources for MainStage or information on pad sounds for worship. I have a lot of material archived at WorshipMusicians.org and you can find even more material there by other members of our community. A good place to start is with my Starter Concert for MainStage. It has a number of edited/optimized patches for MainStage that require nothing beyond the default instruments and effects of MainStage 3. You can find it here.