Dynamic RAM preview has been great to use on trouble spots. Recently I have been using it often enough that I wish there is a way to avoid the frequent visits to Options/preferences/video to set the Max and then have to go back there again to release the memory when I am done.

Is there a way to set two values of the max MB for dynamic RAM preview and toggle between them using keyboard shortcut? For instance, if I set 500 MB as default and 2000 MB as another value to use on longer spots, is there a way to easily toggle between the two values without having to go to Options to raise the value and then go there again to lower the value after done?

Thanks,