Not an answer but a question in the same line of thought...
Say the SS is incrementing to the next number in the row, but the rows
are grouped in sets of rows. Each set(group) of rows is numbered. A
valid equation would consist of:
=(MAX($A$10:$A20)+1)
This would be placed in cell A21 and would "get" the largest number in
the range of rows from 10 through 20 and increment to the next
number. Thus correctly numbering each set. This will work for a
predefined SS where the lines can be deleted and the groups of rows
will retain the correct numbering...
I desire to make this a bit more autononous w/o the use of a macro.
The purpose being, adding a set of rows w/o having to bother with
readjusting the equation. And in some cases the desire to not execute
macros in the SS for the purposes of security

.
Say with an equation like: =(MAX($A$10

ADDRESS((ROW()-1),1))))+1)
but EXCEL doesn't like the syntax that is being used and it isn't
clear what should be corrected.