I have a project with multiple services. And i would like to be able to set the name of the connected branch for all services with a single change - so an shared variable would makes the most sense for me.

I know that PR environments is possible, but to be able to change a signle variable in the platform makes more sense in my use case than make a new env.

TL;DR:
Be able to set "Branch connected to xx" to the value of an variable