In order to add/edit/remove channels to the forum, select Forum from the left column, and choose Channels. If you want to create a new channel, in the field titled Create new channel, type the channel name you like. If you want to edit a channel that already exists, under the tittle Channels, press the edit button (pencil) next to the channel you want to edit.
Apply the changes you like and press the save button. If you want to delete a channel, under the same section, choose the channel you want to erase and press the delete button (bin).
Create a new post in the forum by clicking new post in the forum section. Choose the channel you want to post to, type your question and more information about it and click the post it button.
Add a comment to a post by clicking on a post. In the new page, type your comment in the field titled New comment and press the button Add comment.