I had a simple single stage OR simulation that I created last year in OR 17.11-rc2.1 since it supports pods (side boosters). After LDRS 38 and seeing several staged rockets I decided to work towards building a realistic falcon heavy. I have created the staged sustainer sim but I have 3 stages showing up. Stage 0 is the sustainer, Stage 1 is the center core, and Stage 2 is the side boosters. I think 3 stages is correct since the side boosters drop off first and then the separation happens. However I think Stage 0 should be the center core, Stage 1 should be the side boosters, and Stage 2 should be the sustainer. How do you change what components are associated with each stage?