Module settings - edit only one record
I created a new module and extended the model for some module settings:
_inherit = 'res.config.settings'
_name = 'custom.config.settings'
And added custom fields.
I created a view for it and appended it to an existing menu.
Now what I want is to only have one record of this settings but when I open the input form I can only insert new records. It doesen't load previous setting for editing. If I manually write id=1 in the url I get the first inserted record that gets updated, but what I want is to always get the first record since this are settings for the module..
How can I accomplish this?