How to reset the FTX 94 after vehicle battery change

Question

I have the FTX 94 installed on my 2017 Subaru Outback, has always worked well.  Recently I had battery troubles and had to replace the car's battery.  Now the remote no longer works.  I remember resetting this once in the past with a sequence of on/off positions on the starter button (no key on my model), but can't remember how, and can no longer find the YouTube video that previously guided me on this.  

Can you please tell me how to reset the remote starter?

Thanks very much!