Hi everyone, I’m customizing the Discourse sidebar and would like to create a custom collapsible section in the left sidebar, similar to the default “Categories” section — but tailored to my needs. Here’s exactly what I want to achieve: • I want to create a custom section in the sidebar called “AI”. • When a user clicks to expand “AI”, it should reveal subcategories, like: • Agent • LLM • Prompting Similarly, I want to create another collapsible section called “Crypto”, with subcategories like: • Bitcoin • Ethereum • DeFi I already created the main categories and subcategories in Discourse. Now I just want these to appear in the sidebar grouped and collapsible, with their respective child categories underneath. Is there a way to manually define such sections using the interface? Or does this require a plugin or theme component? Any help or examples would be very appreciated. Thanks in advance!

How to Create Custom Collapsible Sidebar Sections with Subcategories

Arkshine April 6, 2025, 11:22am 3

Hey,

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