Changing Boot Sequence option to A,CDROM,C - is it possible?

[Agent24]

I have several Award BIOS in older computers, and for boot sequence there are options like:

A, C, CDROM
C, CDROM, A
A, C, SCSI

But nowhere is the option as such in some other computers:

A, CDROM, C

is it possible to add (or to edit) one of the options in the sequence list to point to A, CDROM, C?

It's a very useful sequence and saves a lot of time instead of changing the setting each time you want to boot from CD because you left it on something that tries to boot floppy or hard drive first instead.