[Request] HP Pavillion G7-2251dx InsydeH2O v3.7 F26 -unlock advanced settings

Hi,
First of all I wanted to say that this site is awesome, you are providing the people what they should have been given by the manufacturers. I cannot thank you more guys for the work you´re doing here. But I need your help! what I want is to access the advanced tab on my bios in order to change the amount of "allocated video memmory" from 512 to 1gb so that my video card can deliver better performance. I would gladly donate to the site if you could help me with this beacuse you deserve it.

Here are the specs:
HP Pavillion
Model: g7-2251dx
-Ram:Slot 1 2 gb ddr3 1600mhz and slot 2: 4gb ddr3 1600mhz
-Processor:AMD A8-4500M APU with Radeon™ HD Graphics
-Bios Version/Date: Insyde F.26, (2/21/2013)
-Version: 3.7
-Bios Type: InsydeH20
-Bios Download Link: Here

And here are the pictures of my BIOS menu:
Main

Security

System Configuration

System configuration---Boot Options

Exit


Thanks in advance!
Regards
Alex