This isn’t an option yet but I would like to see a task for a client and be able to group additional tasks, in case the client has other entities. I understand how subtasks work but I wat an individual task for each entity, just to be able to update the comment on one and maybe have a pop up window that says “add comment to grouped tasks?”
Welcome to the Asana Community Forum @anon21509982 
Here is an existing feedback request thread which I think is what you are looking for?
If so then I will go ahead and merge your request into the other post 