Create A Forum - Support Forums

Hi,
I would like to make a board read-only except for a specific individual who should have the right to create posts as well. How do I do that? I am not quite sure how to do this. I see how I cam make the board read only, but I am unclear how to give read-write access to a particular indiviual.

Here is what I cannot quite figure out:
I created a new membergroup and assigned the user to the membergroup.I created a board that is read only. Both my regular members  and the new membergroup are allowed groups.
Now how do I assign the membergroup to the board so that the new membergroup can post, but not the others?

I am still hopelessly confused... I have a hard time understanding the difference between board permissions and group permissions and profiles.

1. I create 2 membergroup profiles Group 1 and Group 2. I want both Groups to read and write all Boards except the special board. Group 1 should be only able to read the special board and Group 2 should be able to read and write the special board. The two Groups have the same permissions, but Group 2 has only one member, the member that should have read/write access to the special board.

(Question 1: when I create a group, what is the difference between "inherit from" and "Based off of".Question 2: When I select "board the membergroup can see", does "see" mean read and write?
2. So now, I go to the Board itself. What do I selecti as the Permission profile. I should think it should be Group 2? or read only? and what do I put as allowed groups Group 1 or Group 2? In fact I want both Groups to see the board, but only one should edit it.
I am really confused.