Rabbit Plugin - Changing Initial Cells

Hello. I’m trying to create an excitable media system with rabbit plugin. Initial cells are constant at the beginning, then you start it and system evolves. I have a list of changing speeds. for every item of the list where speed > 0, there is a point. I want that point to become initial cell, it depends on the speed (comes from another data). Not sure if i could tell it well but is it possible to make it a dynamic system, not a static one? Thanks.