Invite photos to the group
It's embarrassing that I reinvented the wheel. I didn't notice its existence and how similar the two scripts are untill I found the previous one. As it took me a while to program, I still decide to share with you. This GM script inserts a link to photo comment section to help you to add a comment of invitation to the group easily. Threr're two differences between the two scripts: It loads all groups you belong to via API and can filter out non-administered groups. And, you can define a template of invitation message.