Hi

I'm using the module subscription to create automatically invoices monthly.

Nevertheless I have some cases, where I need to create automatically invoice yearly.

In the model subscription.subscription the field interval_type is of type selection, but I can't see any list of value, neither add the value month.

I've checked out as well the file subscription.py, but I don't know what should I change to allow yearly recurrence...

Thanks for your help

Cheers