A wish...

Having been very happy with Shadow as-is for quite a while, I find
myself with a wish of growing intensity :-) for the wishlist. I have a
"today" list of current tasks organized under headings (headings, such
as "Calls", "Projects", etc are level one parents, tasks are level 2).
For convenient focus on task execution I apply a filter to show
unchecked priority one items only and then hide parents to get a flat
list of due tasks. I remove the filter and show the parents in order
to work on the list, upgrade priorities etc. If the "hide parents"
instruction could be made available as a possible component within a
filter, then the four steps/eight taps (drop menu, apply filter, drop
menu, hide parents, drop menu, remove filter, drop menu, show parents)
could be halved. Is this feasible?
David