CONTROL-F… On Mac, if you enter the find keystroke a second time, it invokes the in-browser search. Does that work on your Windows browser?
NEW TOPIC CATEGORY… Wyze has chosen to implement a set of fixed categories for the forum. Any new topics must go into one of those. The “catch all” category is #ask-the-community. There is a pinned forum feedback thread there, and I’ll be merging this topic there when I’m done typing.
ADD USER… I’m not sure what you’re seeing. It sounds like you may be trying to create a Personal Message. That would require the entry of the user to whom you want to send the PM. In any case, could you post a screenshot and weblink to the page where you’re seeing this so we can investigate.