Add a configure button to the module listing on the extend page

and a sort of tangential but related question, but i'll ask here before opening a new issue, at the moment the module is sorted under "other". would it make sense to file it under field types even though it is no "real" field type if i understood it correctly and "just" configuration basically? But from an end users perspective the module is adding a field type on the add field page in the end that way it would be discovered more easily.