API Connector allows passing Form-Data by specifying a “Body-Type” only for PUT and POST. The drop-down disappears for GET but it should be there. There is a workaround to switch to PUT, specify Body-Type as “form-data” and then switch back. But the drop-down should be visible for GET as well.
I also have this problem. I need to make a get call with the Form-data bodytype but it doesn’t display in get