Well.... it arrive early by DHL. Very nice packaging it was placed in. Quite professional. I was helped to set up with this video. His settings are shown in video.
This one shows Tobii being used in DCS
After you download the drivers you download Tobii Game Hub from Tobii site, for adjusting all tracking settings for head and eye. Here: Tobii Gaming | Download or Setup Eye Tracking Software and Drivers
And here is their video about setting up Game Hub Getting started with Tobii Game Hub – Tobii Support
Other people have said they used FaceTrack Noir or something. I have not tried that. Maybe I'll try it later, but this Tobii Game Hub seems to work for me.
I have used Tobii with Eye Tracking plus Headtracking. Then tried it with just headtracking. At the moments I have turned on back the eye tracking (gazing) but lowered the percent it has effect to about 15% so that it just comes on little to add another small dimension. In the first video you can see the settings that he uses. It is a good place to start.
For me, this Tobii is more natural than my old HeadTracker thing which was clunky and would screw up. I am so happy that I don't have to wear contraption on my head. It's nice.
I will experiment with settings some yet. The only thing that I need to get straight is the reset to center view function. Right now it doesn't seem to be go back immediately when I click the button assigned for that. But, it I find that I don't have to recenter it with button if I adjust my seat and body. It them comes back. I have only used it for a few hours.
Overall, I like this much better than the head contraption things. I have mounted it to a big gaming notebook. A very thin magnetic metal bar provided, is stuck with strong tape below the screen which the magnet hold the Tobii bar when you want to use . You can just pull the Tobii off when done and leave the metal bar on the notebook and close the lid.
Tobii is having 20% off sale for 13 more days so now it good time to buy one. Here: Tobii Eye Tracker 5 - The Next Generation of Head and Eye Tracking - Tobii Gaming
By the way, I bought my Tobii when the sale was on but it was only 10% off sale. I hurried to buy it before sale ends. I bought during the last few minutes of the sale. After I paid for it, the the price immediately dropped down to this 20% sale. I was sad. ... But Tobii sales contacted me and said that they are refunding me the 10%, so that I got 20% off.
That was very nice. They have been good to do business with. Very fast and efficient.