You're the best. Thank you.
fyi I had this idea but didn't try because it says "Custom Category", I thought you can only choose one. Works perfectly now.
Do you use a custom theme?
I'm using the default persona with an addon to disable subcategory view on the home page.
You'll want to wire up a click handler to your trigger element, and when clicked, execute app.newTopic(); That's it!
Thank you, ill have to learn CSS/HTML to do this then I am guessing.