How to set RenderTargetPoolMin?

Hi there.

I keep getting some warning messages saying that I’m exceeding it, but I don’t see any option to increase it or anything?

[2015.01.25-23.30.08:166][535]LogRenderTargetPool:Warning: r.RenderTargetPoolMin exceeded 513/400 MB (ok in editor, bad on fixed memory platform)

What can I do to increase it?

Thanks in advance!