Revit elements created with RiR are pinned by default. It would be nice to have an option to unpin them. Maybe the same way you can delete them by right-clicking on the output.
Looks like a neat idea.
I add it to the list.
Please update and tell me if it is what you expect.
Keep in mind that if you unpin the output elements Grasshopper will stop updating them until you pin them back.
Will this be implemented in the next build? I like the look of those options.