Send Automatic Invoices foralready created Subscriptions
This is a really simple but very useful feature to add, when a subscription is created, currently you cannot change the settings of invoice sending, if the invoices are sent manually for example, you have to cancel and recreate a subscription to setup the automation of sending invoices.
The problem is that if you make a mistake, it is very annonying for customers to tell them "Can you subscribe again as we cannot send automatic invoices rn..."
So my request is verry simple: Add a button so that we are able to change the settings about automatic invoices on already created subscriptions.
