When adding field groups to content types with the landing page field type I expect to be able to edit them via the form view. With a standard Ibexa Experience 4.6.1 interface it seems this is not the case. Additional field groups are not displayed when in the page builder view.

Example screenshots attached. Reproduce with following steps:

• Install Ibexa Experience 4.6.1
• Edit landing page content type
  • Add new field group and image asset field (Social Share Image)
• Create new landing page in content structure
• Find that the field group and the field are are not available for editing

Maybe this is an issue with configuration, but ideally I would expect the fields to work in the same in the  same way as they do in the standard editing view where field groups are visible via a new tab without additional configuration.