View Mode Selector Field
This module allows content editors to select a display view mode for an entity using thumbnail images. Developers can provide custom thumbnails, and editors can choose one from the entity's edit form to influence how it's displayed.
The View Mode Selector Field Module allows editors to select a view mode for
the an entity thanks to a list of thumbnails images.
Developers can add thumbnails images in a specific folder
(theme/view_mode_thumbnails/{entity_type_id}/{bundle}/{group}) in the wanted
theme.
Once done, editors will see these images in the edition form of the entity. Then, they
will be able to select one image as a view mode (based on image file name).
Once done, the module will add a suggestion part in the template of the edited entity
according to the selection of the editors. For example, if the editor select
an image called
"theme/view_mode_thumbnails/{entity_type_id}/{bundle}/{group}/left.png"
then a suggestion prefixed by 'f_' will be added in the suggestions list. Ex: