In line with the Bugreport https://support.zabbix.com/browse/ZBX-4100 (same Graph name appearing multiple times when a Hostgroup with several hosts is selected), it would be great to have the possibility to automatically display a given graph for all hosts in some Hostgroup.

This request is very related but different from https://support.zabbix.com/browse/ZBXNEXT-75 (enable displaying all graphs for a given host at the same time).

Concretely, this could mean that when in Monitoring/Graphs we select "Group: all" and/or "Host: all", the Graph dropdown displays only once every graph title, and the page displays the selected graph for all hosts or all hosts in the selected hostgroup.