In order to set brightness and contrast while calibrating, it is easier to control the display by ddc. As there doesn't seem to be a ddc option in colourspace, and only one piece of hardware that isn't a probe can be connected, which is resolve, the only way i found was to use the asus software, which only works when usb and hdmi are connected to the same computer. Which doesn't work as it's only connected to the decklink, hence thinking maybe it's easier to close loop calibrate and miss out the Resolve machine complications
Maybe there is a way to have a remote version of colourspace running on the resolve machine, to control the asus. Guess I'm used to having ddc options in calman.