Being able to collapse and expand Groups on the panel is a powerful way to find the right extension. It seems to have a built in delay to make it visually pleasing. While I am all for visual pleasure, that pleasure will be lost on an operator with a stack of calls to route if it takes three seconds for a group to expand and collapse. Maybe a configuration option could set the speed for an installation.

While thinking about that use case, I could also see "expand all" and "collapse all" buttons on the tool bar.

Thanks for your consideration,

Ted