Was about to open a new topic for this but found this existing topic, which isn't closed yet, so I'll reply here. o/
Just came across this issue that I have kinda long note with 3 major parts that would make sense to just hide in a Spoiler to open whenever I need to check or edit, instead of scrolling for long. Seems more convenient to me than have 3 random notes lying around in my Notebook that I link to..
Since the main workarounds currently are either:
Make separate notes and link to them in the current note
Enclose them in encrypted text, which requires you to type password everytime and doesn't even work in browser view
So yes, please, we need this feature.
This has been a topic, ages ago already, unfortunately closed:
@Silent1380 Like in the linked topic above you might wanna edit/adjust the title, to something more clear like: "Add spoilers to hide content within note" or so. Could help others find this topic too :)