Hello,
I’m sorry about the delayed response, our forums have been a bit busier than usual lately!
You can add a condition to check the category. The tribe_event_in_category function will check if an event is in a certain category, but it will not return true if you are checking the parent category of an event that has a child category of that parent.
To use the parent category, you would need to first get the child categories and then check against those before hiding the end date.
We are a bit limited in the amount of support that we can provide for customizations, but if you get stuck or have any questions, please let me know!
Thanks,
Jennifer