[REQUEST] Merge memory/disk graphs?

[GanerCodes]

I'd like the option for proportional related graphs (like ram or disks) to be stacked. For example, I only need to see the used bar in disk usage. In memory you could merge the colors together and place them on the same bar in order of proportion

Also, on an unrelated note could I somehow disable the overall CPU graph? I'd just like the cores section and not the large one to the side of all of them