Idea for Focus / Scrolling

[Schlappo22]

Hello,

I would like to propose a change / feature for the library that I have not found / identified so far.
When I am scrolling down, the cursor moves as intended, however when I reach the bottom of the menu and focus up, I would like the focus to move first and only then scroll the screen.

I'll give you an example for a 2 line LCD, without code because that doesn't show what I mean.

The Menu has the following lines (lines represent the screen), < is the focus cursor.
When opening the menu we have something like this:

---

Line 1 <
Line 2

---

Line 3
Line 4
Line 5

Focusing down once will give us this:

---

Line 1
Line 2 <

---

Line 3
Line 4
Line 5

One more focus down will give us this:
Line 1

---

Line 2
Line 3 <

---

Line 4
Line 5

When I now scroll up, I get this:

---

Line 1
Line 2 <

---

Line 3
Line 4
Line 5

But I would like to get this:
Line 1

---

Line 2 <
Line 3

---

Line 4
Line 5

This problem can be replicated for all lines further down as well. On the two line LCD its actually not that big of an issues but for the 4 line screen, it looks a bit odd without the cursor moving.

I played tried to have custom focus positions for different cases (focus up vs. focus down), but did not succeed.

Can someone help and show a workaround or how I could implement this?

Thanks in advance!