Thanks @Arkshine I saw that but I generally try to avoid large plugins as they can sometimes be a pain when it comes to upgrading the core product (however it’s good to see that one is an official plug-in and so I’ll definitely check it out in more details).
I’m also not sure we need a sidebar on the right as we already have one on the left. I think slightly widening the existing one and adding more to it makes better sense, as it’s fairly redundant atm unless you have a lot of chat DMs or chatrooms you use.