Pointers for using AMIBCP

[geko2012]

I am currently working on unlocking certain features on my AMI bios from a  HP Pavilion 550-027c.
The motherboard is a msi orchid2-s, BIOS_LINK V.80.06 04/29/2015.

The question: under GFX Configuration in AMIBCP there are 3 rows of Frame Buffer Size....
all with the same handle, i assume to activate that feature i would have to enable access to all 3 of them and set them to user.

Now why are there 3 rows and is it safe to change them ? Could there be any possible conflicts with 3 entries ?
I attached a screen as well for convenience.

Thx