Have you tried logging out and back in again?
"Account Manager" is your friend.
You can. Just head to your user in your User Library and tap the avatar to change it
I've thought about this a lot, which I am considering. The Store is planned to be revamped very soon so I do plan to add this in.
Don't tap the price, tap the product text of the item you'd like to purchase. This has been fixed in next update
Stories are coming in v5.2. Sorry for the push back. But libraries need to be sorted out and improved upon first to bring NEW features and far better stability.
It sounds like a great idea!
Customer support service by UserEcho