I suggest that the note box should be resized by dragging his shape. I was working on a design and I desired to put a note, and actually has a bunch of words, but the way how it looks isn't that user friendly.
Please, check below how it looks:
Also, it would be nice that a note can be related to a table (there's a description field on table's panel but it's use to describe the table, not for add specific notes).
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