see https://www.zabbix.com/documentation/3.0/assets/en/manual/config/visualisation/map_triggers.png as a good example.

here, map element properties have been opened, and then link properties have been opened. in older versions, the popup was better structured - one could tell where element ends and where link starts - compare the above with https://www.zabbix.com/documentation/2.4/assets/en/manual/config/visualisation/map_triggers.png