Bookmarks in the note editor

Well, the idea is like this: If I open a note, a sidebar opens as in the main window, showing bookmarks instead of tags. This feature allows to enter even long or even very long texts into a note AND having instant access to any number of text blocks.
This feature would be, from my point of view, an unique extension of the usability of the software and so make it useful and of interest for even a larger number of potential users. (suggested by Carsten H.)