Gate BluLink is just a way of connecting the Gate Aster or Titan mosfets with the Gate Control Station (the programming software running on your phone). It's basically a wireless version of their USB Link. It's proprietary to Gate and will ONLY work with the Aster and Titan.
The only way to "program" a fire selector without using a programmable mosfet would be to cut the selector plate such that it can't go into Auto, so you just get safe/semi/semi, but that's pretty much it.
What are you trying to achieve?