GJ Hide fields when user creates new group

Hi, how can I hide fields when a user creates a new group on the front-end in GJ?

Now a user can enter: name, description, logo, type, group access, invite access, user public, notify, integrations and captcha. I only want to show name, description, logo and captcha. The other fields need to have a fixed value, say "group access" is always "registered" and "invite access" is always "group owner".

Thanks
T.

You can't without editing the templates directly. You'll need to edit group_edit.php in the default template folder to meet your needs. Defaults are defined in the core code, which I can not assist in editing (core edits not supported).