Hi Larry. In that link you provided, Bargs showed a screenshot of the filters that are pinned and then they are carried over to the context view. I'm using 7.4.2 and the pinned filters aren't carried over.
link showing the pinned filters carrying over to the context view
So I have a whole bunch of docker log records and when users click 'view surrounding documents' they see logs for many different containers. They have to reenter the filter each time if they want to see the surrounding documents for their container.