Illustrator on Ipad pro- how do i change brush size?

Hey, I just got an Ipad Pro for portability, but I'm having some issues adjusting to the new layout. Is there any way to get the standard illustrator layout on ipad? I miss having the little windows where I can adjust brush width, colour palletes and colour picker etc. How do I do these things on the Ipad? I can't seem to find the option for colour sampling or  choosing the precise brush width