I have a very complex workbench with a lot of different scenarios where I run only one or two or maybe more parts of it sometimes, while others are disabled within bookmarks. Maybe It could be done differently (splitting in few workbenches, simplifying, ..). But let it be like it is:)
Working like this, I realized that It would be very nice if there will be some option which hides all disabled parts ofthe workspace (i.e. transformers, connections), not just coloring them light gray. One simple click on the icon "hide/show":) And I get better and cleaner workspace overview.