double-layered(locked) GuiDrawingPanel?

[HolySheepy]

uhm would it be possible to do this or add it?

i noticed if you draw on a GuiDrawingPanel and draw something over you can see the first thing drawn, then 0.x seconds after the second etc

can there be something like 2 layers or a lock function?

like you "lock" it, now it stays what it was when you locked it and what you draw is drawn in the "background", when you unlock it, it updates and shows the new "surface"(that was drawn on)

because i would like making a system that uses 2 guidrawingpanels and has to draw on the second one that is in the background, the change what is in the background and draw the same things on the other one again(to keep it synchronized)