I knew this site would teach me more about my beloved vim :-) In posting a question/answer on how to delete large blocks without having to count lines, one of the answers taught me something I didn't know, that being relative line numbers along the lines of:  2 This is line 1  1 This is line 23   This is line 3, the current line.  1 This is line 4.  2 Line 5.  3 Line 6.Now, if you wanted to delete lines 3, 4 and 5, you can simply add one to the relative line number (2) and use that to set the count, the command being 3dd.However, adding one seems a bit obscure so I was wondering if you could configure the line numbers in relative mode to be more like this:  2 This is line 1  1 This is line 23 1 This is line 3, the current line.  2 This is line 4.  3 Line 5.  4 Line 6.That way you could simply transcribe the number into the command without having to think about it.
Can relative number be changed so that current line is 1?
line numbers
Don't do that.  A numbering system that goes from -1 to +1 without a zero in between is just asking for trouble.As an alternative habit, I suggest d2j  delete this line and the next two lines.  That works both ways: d2k deletes upward.A long-winded ex command version of that would be :+2d.