Assign modules to vendors in hikarmarket vendorlisting

-- url of the page with the problem -- : provinsbyer.dk/leverandorside
-- HikaShop version -- : 3.5.1
-- HikaMarket version -- : 2.1.1
-- Joomla version -- : 3.8.10
-- PHP version -- : 5..6.36
-- Browser(s) name and version -- : Safari 11.1.2

please find attached a screenshot from a Hikamarket we are building.

The sidemenu module is based on the default menu in the Hikamarket, and the menuitem “Butikker” marked with a blue circle is the default vendor listing menuitem COM_HIKAMARKET_VENDORMARKET_VIEW_DEFAULT_TITLE

When you click this menuitem will return the 3 vendors marked with a red circle. The vendors listed are links to the vendor pages.

How can we assign modules to these links (they are not visible in the joomla “menu assignment” tap ?