What do you mean on all pages? Do you want it on the right rail?
Um right raile??? what??
The right rail is on the right side of the page, and it has the "Recent Wiki Activity" and "Popular Pages", some wikis have their Discord widget added here too.
Since you asked this before, did you do what Andrew told you last time? https://community.fandom.com/f/p/4400000000003105503