Hey, team.
I have a suggestion for the maintenance mode, more precisely a suggestion for the issues widget. 
If you send to maintenance mode a host group with a large number of hosts, but using tags so that problems are suppressed only on the necessary ones, then all problems that occur on those hosts are displayed with a "wrench" in the problems widget. Even if that host does not have any problems that fall under the tag specified in the maintenance mode settings. 
So, is it possible to make additional customizations for this widget? For example - display problems that do not fall under the tag with a slightly different symbol (for example, a wrench with a yellow outline, but transparent). Or add an additional customization for the widget. 
Along with Show suppressed problems, add a "hide maintenance mode icon" button. 
This would help in case of monitoring by large teams that get information from dashboards and widgets.