Creating a new room: section "comparison" -> "rooms" -> button on the right "create a room". To change the relativity - move the mouse cursor to the top of the room - a window opens where you can set the comparison parameters.
The comparison function works only from your position. To change this relativity from the position of other people, the comparison has limitations, but this is possible with the consent of those involved to the special comparison room. Create a room and invite any respondents there (not everyone will agree), the number of users in one room can not exceed 10 (greater number of respondents in the room is also possible, up to 100-200 or more, but it requires cogent causes - this service is provided on a special application, and only on a contract basis).