Please add a further option tothe classic taskmanager configuration to only show windows *not* in current activity. That way it can serve as an overview what is going on on the other activities without having to open them (I tend to forget the windows I don't see). When I use activities I always use two taskmanagers in the panel, standard taskmanager to only show windows of current activity, icon only to show windows on all activities. But it would save space and would just gibe a better overview to only have the tasks from all non-active activities in the second pager and not all. It could also serve as a kind of workaround for not having an activity pager to see what's going on on the other activities if someone wants to use activities as virtual desktops because it is not possible anymore to have different wallpapers and different widgets on virtual desktops. Reproducible: Always
*** Bug 354347 has been marked as a duplicate of this bug. ***
There hasn't been any developer interest in this in the past 7 years so I think it's safe to say it's probably not doing to happen without someone submitting a patch, sorry. :)