Did edit order yesterday + cancel button stuff today, all working fine for 99% of use cases.
If it doesn't work for some people/use cases then I'll just edit it as they request it etc.
Gotta do edit shipping address button soon as well.
In-app subscription editing might be a future thing idk I'll probably have to manually create subscriptions and edit etc myself n see
Would be a very good feature to have though as it'll save agents time... so I'll see if I can do it.