So let’s say you have a Collection (instance 1) that you started on this page. Time goes by, and you have to shift your focus to other things. You use up pages in your notebook. When you want to resume your previous Collection, you create another instance (instance 2) on this page. You shift gears again for a while, and then you continue the Collection on this page (instance 3). To thread these instances together, all you have to do is add the page number of one instance next to the page numbers of the other instances. So if you’re at the start of instance 2, you would write “10” next to this
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