I'm trying to find the best way to start a track based on the next activity. I'm building a pretty big model that I've imported multiple patient tracks into. These tracks consist of a Lab visit, DI visit, etc. I want to build a general track which most patients follow up to a certain activity (Let's say up to Activity 50). Once the general track reaches Activity 50, I want to be able to start a new track on that patient (Lab or DI, etc) based on where the patient should go next, since each of those tracks have their own set of activities. This prevents a huge activity list for 1 track. I couldn't find anything but is there an easy way to start a completely new track for a patient that is on a current track? The other option is to just rebuild the master track that includes the other tracks but that will include a ton of tedious work that has already been done.