Note Tool Extension

I would like to see an extension of the "note icon":

Create categories + be able to distinguish them by colour

Tick notes (or whole note categories) so that they are no longer hidden when you continue working on the map.

show or hide whole categories by tick marks

In addition, I would welcome a link within the notes by marking a word (or sentence), so that one is then forwarded directly to another note (differentiation perhaps by own naming of sender and recipient?).

Why actually? Depending on how full or compressed my map is, there may not be enough space to write down the names of all the mountains, rivers, plains, forests, etc. But if, for example, I could use all blue slips for rivers & lakes, grey slips then for mountains & plains, then my own world map is only as full of slips as I designate it ;)