Description of the need As discussed in https://github.com/backdrop/backdrop-issues/issues/2379, there exists a possible need for pseudo fields to have settings that can be configured per display mode. Pseudo fields can be created to display on the edit and display forms, but unlike real fields on display forms, they cannot be assigned settings that can be configured via a 'Configure' button.
Proposed solution Allow pseudo fields to define settings which can be configured via a 'Configure' button on display mode forms.
Alternatives that have been considered A workaround exists, but I think it'd be better for core to provide this functionality natively.
Recent comments
With JQuery, simple and fast. Or put all possible links in one menu, and hide unnecessary with CSS mediaquery.
Different primary menus depending on the viewport size?
I wonder if what is happening here is the default database settings are for utf8mb4 if the database server supports it. In settings.php or settings.local.php if that's where you put your...
Problem with utf8mb4 Format when importing database
I've not done this with a menu before but something similar with different Views presentation blocks for different resolutions (i.e. not just responsive but a different presentation method...
Different primary menus depending on the viewport size?