need new feature:sequential task

[bibibimartyr]

Can the developer provide such a feature: sequential tasks, in a task list, only the first unfinished task is displayed, all completed tasks and all subsequent unfinished tasks are hidden.

[cssdev]

I managed to accomplish this using some custom css:

body.hide-completed-tasks li.task-list-item[data-task=""] ~ li.task-list-item,
body.hide-completed-tasks .HyperMD-task-line[data-task=" "] + .HyperMD-task-line {
    display: none;
}

The state doesn't save, but here's the result of using the toggle with the css in place (works great on kanban boards too!):