Some users of AmpedSense have trouble setting up their first tests because their ad configuration screen doesn’t allow them to specify the ad size, ad type, or ad color.
Your screen is supposed to look like this:
But instead it looks like this:
This happens when you have an ad blocker, such as AdBlock, enabled on your browser. Try disabling the ad blocker add-on, or using another browser without that extension installed, and you’ll be able to see the entire set of options.