keep in mind that first you have to create a forum under the category before you can have a subforum
first you create a forum of the type category.
then you go back and create a forum with that category as the parent.
then you can go back and create a new forum with that forum as the parent and it will be a subforum of that forum, not of the category.
I am available for custom work on a donation basis. Please send me a PM with your needs.
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OK, so what's the speed of dark?