Description of the Feature Request

The Sel : area of the status bar is currently only useful in one situation:

When I have a single stream selection it will show me the number of characters in my selection and the number of lines that my selection touches.

Example 0: Sel : 25 | 2 for 25 characters selected on two lines.
This is a good feature.

But what about when I have other types of selection situations?

Example 1:
Multiple selections (after enabling Multi-Edit Settings in the Preferences).

Result 1:
In the status bar I see Sel : N/A
Not terribly useful.

Example 2:
Rectangular selections after selecting a column-block via Shift+Alt+arrows or Alt+LClick+drag.

Result 2:
In the status bar I see Sel : N/A
Not terribly useful.

Example 3:
One selection of zero characters; the normal single-carat situation.

Result 3:
In the status bar I see Sel : 0 | 0
Not terribly useful.

Wouldn't it be super if Notepad++ could display useful information for these situations?

Additionally, there is an off-by-1 error in the current output of the number of lines touched by a single selection; this should be corrected during any revamping of Sel : status bar functionality; for reference see https://community.notepad-plus-plus.org/topic/13087/sel-in-status-bar-is-off-by-1-on-line-count

Expected Behavior

I expect to be shown some useful information in all types of selection situations.

Actual Behavior

Described above.

Debug Information

Reference version:

Notepad++ v7.8.8 (32-bit)
Build time : Jun 24 2020 - 00:15:36
Path : C:\...............\npp.7.8.8.bin\notepad++.exe
Admin mode : OFF
Local Conf mode : ON
OS Name : Windows 10 Enterprise (64-bit)
OS Version : 1809
OS Build : 17763.1039
Current ANSI codepage : 1252
Plugins : mimeTools.dll NppConverter.dll NppExport.dll

Other

I decided to create a new and very specific issue for this based upon prior discussion in other issues:

• Sorting of stream selection can do one too many lines #8447 (comment)
• Sel: 0 | 0 fails to adds new line unexpectedly #7716