Looking for a "crosshair" highlight function in Google Sheets

Question

I'm having a problem in Google Sheets tracking rows and columns to which a cell belongs in a large spreadsheet.

What would be really helpful and simple would be a "crosshair" function that, when active, automatically highlights the row AND column of the currently selected cell, so that when I select a cell, it looks so:

This would make the job of tracking cells on larger spreadsheets SO much easier. Ideally it could be set to highlight row only, column only, or both, but for my needs, I'm looking to highlight both automatically.

Is this at all possible? Is there a script to do this?

Answer 1

CTRL + SPACE highlights the column
SHIFT + SPACE highlights the row

They don't work in conjunction unfortunately.

If I have time this weekend, I'll write an add-on.