Search Function

Hey, I was just wondering if it would be possible to get a search function for the main forum index page... right now in order to search you have to go into a specific forum area... but what if I don't know where to search for my answer? If there could just be a search function so that it can search ALL of the forums, that would be awesome. On a separate note, i can't seem to figure out how to change my avatar... I would search for other threads but I don't know where to search! 🤔 any suggestions? I've tried all my profile adjustment pages, but unless I'm missing something, I just can't find it! Thanks!