Xda app no menu button

Ok so i got my edge plus yesterday. Been using the regular s6 for a few months now and in the xda app there is a actual menu button with 3 dots that kinda hovers down at the bottom. Well on my plus it isnt there. Cant figure out how to being up the menu. If i hold back with a longpress it just starts backing out. Holding home brings up google now. And holding the task brings up multiwindow.

My problem is i cant bring up the menu to create a new thread. Thats why im posting this on my s6 rather than my edge.

Is it something simple im just overlooking?


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