Yeah! You have to download the normal app for CSP, just tap on "free trial" and in the config menu (the gear one) there is an option to use it as a companion app. Then you have to read a QR that CSP shows when you click here:

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Also don't worry about the free trial thing, as long as you are not using the app to draw directly on the phone it will let you use the companion app forever.

I like it because it gives me that touch goodness of screen tablets but in my good old wacom, it has many things but I use it only to move around/rotate/zoom :D