In the "create new topic" dialog I can select the Tips and Tricks . But when I try to create a new topic in the category the button grays out and the cursor turns red like this :
Hi @IvCHo, I see what you mean and find this:
Since Tips & Tricks and Tutorials is broken into 4 sub-categories, one needs to first be selected. They are in that “all” drop-down in your graphic.
Wouldn’t be a bad idea to clarify this, but I’m not sure how it might be done.
EDIT: A little more…
I see that “all” is also not an option for Free Culture and Multilingual Discussion. A sub-category must be selected.
But Support & Help Requests, Development Discussion and Multimedia Showcase all allow it, I assume because those categories include both main and sub categories.
You nailed it Bill 
All 4 sub forums will show up in TT&T
Did not notice that . Thank you .
No problem, it’s easily missed. But how to make it more obvious?
Hi @anon42388993, mouse-over +New Topic is now a circle-slash. Perhaps “Select a Sub-Category” or other reason it’s grayed-out could help. Just thinkin’ out loud. 
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How’s this
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