Folders on hotmail/outlook?

Samsung Galaxy S580 Tablet hotmail account/ outlook if you wish.
Cannot add, rename or delete folders from left list simply because I am new to this and the searches I've done don't work. Apart from that how on earth do you RIGHT CLICK on tablet that has no mouse.?
Many thanks in advance STAY SAFE and observe lockdown, or it will never stop spreading. Police had to breakup parties in Birmingham I'm told.