1)
I would like tu remove the enterprise field or at least not show it - how can I do this ?

The only way to remove CBSubs invoice address fields is to hide them with CSS or remove them from the XML. The XML file can be found below.

components/com_comprofiler/plugin/user/plug_cbpaidsubscriptions/xml/edit.front.invoice.xml

To remove them with CSS right click and inspect element on them to see their container div CSS classes/ID, which can be used to set their display to none.

2)
I created some custom address fields , one of them is cb_invadrpay for the country
I noticed the following : If I put in "France" the value is copied to the CBSUB country field, if I write the country with a mistake (something like "Frrance") The value is not copied and so I see only a "-" - so I suppose that I need to accept only correct country names. So what I want is to make a drop down - but how can I relate to the CB country values ?

You can have a dropdown with the exact same values CBSubs is looking for using CB Query Field. You'd need to create a new field as follows.

Field Type: Query Drop Down (Single Select)
Query:Value Column: country_iso_code2
Label Column: country_name
Group Column: country_region

It only synchronizes once. After that it won't synchronize again. So for existing users they won't really notice anything. Please be sure you're testing new registrations.

An incompatible value would cause it to not copy. Also ensure you've configured it to copy from the correct field in CBSubs > Settings > Display > Invoices.

Inspecting the country invoice input it's using the 2 letter country code, but the database seams to be storing the full country name; try the below usage.


Field Type: Query Drop Down (Single Select)
Query:Value Column: country_name
Label Column: country_name
Group Column: country_region