We want to use the multiselect dropdown to select countries.
There should be one (or later more) special item, which allows to select multiple items at once.
In our example it is the item europe which on selection selects all countries in europe. The value eurpo will not appear as chip itself.
There could be future requests for other continents, which select the corresponding items.
See reference in the uploaded image.
How can we achieve this?
Attachment:
multiselecteurope_6a48186f.7z