Originally Posted by robertthebard
At level 20 you'll only have 22 total spells, on a pure caster:

Lvl. 1st 2nd 3rd 4th 5th 6th 7th 8th 9th
1st 2 — — — — — — — —
2nd 3 — — — — — — — —
3rd 4 2 — — — — — — —
4th 4 3 — — — — — — —
5th 4 3 2 — — — — — —
6th 4 3 3 — — — — — —
7th 4 3 3 1 — — — — —
8th 4 3 3 2 — — — — —
9th 4 3 3 3 1 — — — —
10th 4 3 3 3 2 — — — —
11th 4 3 3 3 2 1 — — —
12th 4 3 3 3 2 1 — — —
13th 4 3 3 3 2 1 1 — —
14th 4 3 3 3 2 1 1 — —
15th 4 3 3 3 2 1 1 1 —
16th 4 3 3 3 2 1 1 1 —
17th 4 3 3 3 2 1 1 1 1
18th 4 3 3 3 3 1 1 1 1
19th 4 3 3 3 3 2 1 1 1
20th 4 3 3 3 3 2 2 1 1
Yes, and how is it better then what we are asking for?

You get more or less the same functionality we want, except:
1) you have to manually set it up to start with and manage it after every level up, every long rest in which you changed your spell repertoire
2) You cant at a glance look through your spells, as you have to manually scroll through one and every level one at the time. So if you have "hotbar" on page1, and want to see spells of 4th level you need to scroll all the way through pages 2-5, and perhaps back again if you want something from your hotbar (like potion) for bonus action.
3) it still doesn't allow to create an easy "folder" for items, and considering how many items BG3 throws at you that would be greatly desirable (like the example above, where I assume clicking on scroll case would display all scrolls in that characters inventory - same would be nice for quaver for arrows etc)

As far as I am concerned tedious scrolling from through pages of hotbars one after another is not a valid option that's why: hotbar isn't enough to organise all spells. If they want all physically fit in one hotbar, then it needs a better system on top of the hotbar it provides.