I have many open tasks in a file, and I want to work a bit on each, one after another, without neglecting any. That would be a round-robin approach.
But how can I find the oldest clocked-out open task in a file? Can I order the agenda by recentness? I found org-clock-history but it can't be limited by subtree/file/region, must be turned on work manually and would not work for tasks clocked before it was turned in. Daniel