Trouble using bamboo.yaml on multiple bambooinstance

Hi,

i have a bamboo.yaml in my repository which is used on 2 diffrent bambooinstances.

The Buildplans differ on those instances in some Tasks, which was easy to solve with global-variables and conditional tasks.

But i have problems settings Group-Permissions within the yaml cause the groupnames on bambooinstance-1 and bambooinstance-2 are not equal!

I tried to set the groupname as global-variable too:

plan-permissions:
  - users: []
    groups: ${bamboo.devteam}

but its no resolving the variable and a yaml parse error occurs with something like "group not found ${bamboo.devteam}"

Is there a way to solve this ? Or any bestpractise how to use multiple bambooinstances on the same project ?