Foreign key checkboxes

Hi.

Upon selecting checkboxes, radio buttons and/or list field type there is the suggestion to use foreign key field.
Great. Let's use that. So I created an extra table to hold to values.

But how to set this foreigh key field to appear as checkboxes?
By default I am getting a multiple select list dropdown.

Please advise.
Thanks.

Hi..

I would like to achieve the same..
Did you get this to work?