Limiting r/w access to a field
We have Odoo V8. We want to limit R/W access to the CREDIT LIMIT and to the PAYMENT TERMS res.partner fields.
Everybody should have read access but only certain users (or members of a group) should be allowed to populate or change them.
Any guidance will be particularly appreciated.
Especially non-programmatic ways -like changes in a group access rights- (but I doubt those are possible).