How can I create a mobile comment or chart that is based on the cursor selected cell?

In Calc, how can I create a MOBILE display cell that varies with the ‘selected cell’?
Fr me this would speed up data capture by typing considerably.

Purpose: to display emphatically the contents of another cell WITHOUT changing format of the sheet in general.

A simple example: Column B holds identifiers for each row.
eg Cell B1250 reads “Bill1234”
Cell B1251 reads “Bill1973” etc
Click on any cell in row 1250 to edit it.
A draggable ‘frame’ that is in large type will show “Bill1234”. This frame floats over the parent sheet somewhere near row n
So if I edit cell M1250, I KNOW I am editing Bill1234 record. No need to read along the row. Even with highlighting the row, this is prone to error and is s-l-o-w.

The frame could be
a) A comment ‘frame’ - content by a formula as for a cell.
or b) A new chart type to display the result of a formula as for a cell, (extension: a group of cells)
Either of these would need a function to define the present selected cell (and cope with multiple selections) eg SELCELL( ) giving the address or maybe SELROW or SELCOL.

So you could define the mobile cell content above as = INDIRECT(selrow(),“B”)
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There’s another valuable use of this function and frame. It would speed up finding which row to edit significantly.

It sounds as if you need a database or a macro.

You don’t need to manually highlight the row, since version 24.2 there has been View > Column / row highlighting

I guess you search for a dialog. Unfortunately this needs macros:

https://help.libreoffice.org/latest/en-US/text/sbasic/guide/create_dialog.html

I prefer a database-form. And while it is possible to connect Calc to databases I will not recommend this here…

  • Why don’t you immobilize (freeze) columns?

https://help.libreoffice.org/25.2/en-US/text/scalc/guide/line_fix.html?DbPAR=CALC#bm_id3154684