1) It's just the name of Positions and does not matter what they are called.
The idea is that if you need to know how your opponent plays in 3 positions to the BTN (that is the MP for the FR and UTG for SH) for example, you create the filter you want, labeling MP1 position in H2N.
So, you can use the following positions for 6max:
2) Usually, seats are numbered clockwise from the dealer, who is sitting at the top. For example:
3) All currently available documentation can be found on our website:
http://www.hand2note.com/Help
In addition, you can search for answers to your questions in our forum:
http://forum.hand2note.com/