Is GRUB2 customizeable enough?

[Richard Owlett]

I will be experimenting with multiple Linux installs on different 
partitions of the same hard disk. [initially various tweaks to 
Debian Jessie from the same physical set of distribution DVDs]

The boot menu display *SHALL*:
  1. display in partition number order.
  2. display the correct partition number.
  3. display the partition *LABEL*
     a. set during install
                         OR
     b. set during subsequent run of gparted

The above *SHALL NOT* be changed by *ANY* run of "update grub".

I suspect I'm looking for a hand-holding tutorial rather than the 
manual.
TIA