Can we add text editor in question type?

Hello Jasmine,
Great plugin.. testing the free version, but plan to purchase the PRO shortly.. I have some questions, apologize for the long message, hopefully you can have the answers:

– Randomized questions: I tried that one.. but it does not make random questions if I am guest or I am solving the quiz from the same location/computer .. is that how it works..?. what is the element that triggers the randomizing (IP address, cookies, User ID, user name, none of them..? )

– See this scenario : I have a set of X questions, I am using categories to identify the “level of difficulty”, I have 3 categories: High, Moderate, Low.. so, I wonder if it is possible to set up the random question feature in such a way that it always select only 12 questions, ensuring there are always 4 from each category. (i.e. 4 High, 4 Moderate and 4 Low). I tried that with the use of some controls in the plugin, but didn’t seem to work.. not sure If I am doing it correctly, or I am missing something..?

– User login form: I tried this feature, adding the login form.. so not sure if I understand correctly how it works.. for instance, I enter a valid username/password ( an existing user), but the form does not do the login .. actually does not do anything after entering the information… so I wonder how that works..?

– User creation: How a new user (quiz taker) is created..?.. does the plugin has a way to create new users.. or this has to be done outside AYS plugin using other plugins and forms..?.

Thanks and congrats for your plugin, very good product.
Pascale