[Request] Shotgun Sports App for other devices

Hello,

I wonder if someone would be able to add the Garmin vivoactive 4 as a compatible device for this existing app? IT sounds perfect for me as i often go shooting solo, and struggle to juggle all the equipment and score cards when out in the field, but unfortunately it isn't currently compatible with my watch. 

https://apps.garmin.com/en-US/apps/21b1d0cd-dd14-47e2-9b97-a46b5c933eff

I dont know if it is as simple as adding the extra device or if it would need reconfiguring for the different button layout?

Many thanks