Looking for a script to automatically create Custom Labels for Performance Heroes, Villains and Sidekicks

[Isabel Scarso]

Hi everyone, 

we want to improve our Shopping / PMax performance by using specific campaigns for performance heroes (which have a certain ROAS or higher), villains (which have a certain ROAS or below) and sidekicks (which have a good ROAS but low impressions / clicks).

We already have a "Zombie SKU" script but I wasn't able to chance it to do what we would need this custom label script to do, because I have no idea how to write scripts.  xD

Is there any chance there's an existing script out there which would be able to do such a thing? Where we can define our own values? 

Regards

Isabel