How to mark the thread [solved]?

I see some thread will be add [solved] at the beginning.

How to add this word?

Forums - choose forum - [edit] - Thread Type - Thread Types Status: yes
                                                                    Display Prefix: yes

--submit, then

also choose that forum - [edit] - Category Name - Add New: input the thread type you want. - submit.

sorry. I still can't get it .

I don't know where is the part you mention?

"also choose that forum - [edit] - Category Name - Add New: input the thread type you want. - submit."

After i have choose everything as you said. How and where to marked the thread as "solved"?

edit the threads posted before or when you post.

you must add it by hands. not a self-motion.

Oh! i see. I find it and have clicked as you told.
The thread finally marked have been solved.
But the "Solved" wording only show when we has clicked on the thread.

It didnt' show on the begining of the thread as the way like support forumgogo!!

I want it show before we click in the thread.

choose the below section its ok

Forums - choose forum - [edit] - Thread Type - Thread Types Status: yes
                                                                    Display Prefix: yes