I have upgraded zabbix from 3.2 to 3.4 in order to use dashboard widgets

one of particular interest for me is Trigger overview widget
but it lacks (from my point of view) one option from Monitoring ? Overview panel: Minimum trigger severity.

documentation doesn't mention it (https://www.zabbix.com/documentation/3.4/manual/web_interface/frontend_sections/monitoring/dashboard/widgets)

as well as I haven't found anything in forums.

Is it feasible to add this feature?