How do you automate side interstages?

@shadowrider - great! yes, that would be nice to have, or part dry mass readout - when im still changing the fuel tank size, i make a small tank section (using the fuel drain priority setting to make it the last one to drain in the stage) and have the vizzy run from that...so you dont have to adjust the program every resizing.

Got it working pretty well. Would still like to calculate the empty mass so I can easily use it with any tank. Seems like we need a variable for fuel state or mass for individual tanks. Can only see that for entire stages I think. Here's my solution.

https://steamcommunity.com/sharedfiles/filedetails/?id=2925560711

@SmurfResearchX Thanks! I will give that a try.

there is a "part mass" in vizzy - use the part # of the booster fuel tank, and set the "activate stage" to happen when the mass gets 1kg close to empty. so, say the booster fuel tank weighs 1000kg at launch, and 100kg empty...set "activate stage" (interstage) to happen when it weighs 101kg