A suggestion of a feature that would be useful for me:

The possibility to add some "notes/comments" for myself (just text-based) on the different pairs.

The reason for it is that I often look at different pairs (30 to 40 different pairs), make my own analysis, and then see that the time is good or not good to trade on it, then move on to another pair.  And the next day I don't always remember what mya analysis at that time was, so I have to re-spend a few minutes per pair to re-check things all over again.  With 30-40 pairs, you can imagine it can be lenghty.

Here is a real-life example:  E.g. There is a pair I like to trade, but now there is a big surge, and I expect it to crash in the short term, so I won't trade on it for now.  So it would be helpful for me to have a "post-it" type of note, where I would write for myself, for instance: "Crash expected, check after Sunday".  Or another one:  "Market always goes up after a drop.  Hold longer."

Something quick & easy, simple plain text, not a full WYSIWYG editor.