Layers window in app

It is hard to move the “layers” window to under the screen (“scene” window) that seems to be where other people put the “layers” window
It is hard to move the “layers” window to be right under the screen

How do you do this?
Right now, the “layers” window is going across the bottom from left to right
It is like under everything else but it’s not right under the screen window (“scene” window) since it’s going across left to right

But trying to put it under the screen window (“scene” window)
Would be good if it was already there by default since that’s where most people seem to have it

Cant get it to be in the right spot right right under screen window, it keeps on going to the spot is completely left to right - but other people in videos have it right under screen window

How to do that?