Thank you for your welcome and your quick answer, Jorge-Luis.
I thought that the easiest way to describe what I would like to see is to send a screenshot (attached). The calendar, event list and task list windows are, of course, on the left, with the sidebar on the right.
The "before" pane shows my configuration of Rainlendar with two upcoming events and two upcoming tasks. The "after" pane shows how the windows remain when the two tasks are removed. The "What I'd like" is obviously how I would like both window configurations to show after the two tasks are removed.
I hope that all of this is as clear to you as it is to me!