This is great and I quite enjoy it. I would love the ability to create multiple cursors from a selection (within a block of course). Intelij (and others) have a hotkey like Ctrl+G to add another cursor at the next instance of a word and Ctrl+Cmd+G to select all instances of a word. That's something I do in IDEA's scratch pads constantly but I'd like an ever-running note of what I'm doing divided into blocks.

Also it would be awesome to have some metadata on each block that is toggle-able (or just inserts as text) so I can have the current date/time added or shown.