User talk:WentaoXU18

Sidebar related
I want to design a sidebar for particular pages. For example, I have some pages categorized in "Chemistry" and another pages categorized in "Physics". I just want to show "Chemistry" related sidebar and hide "Physics" related sidebar in "Chemistry" pages. Same for "Physics". Is it possible to do this? What kind of extension is needed? WentaoXU18 (talk) 06:43, 3 March 2023 (UTC)