in linux we call it the same

in your desktop wallpaper right click/unlock widgets
in the taskbar right click/panel options/panel settings
this will enable the tools to modify the taskbar, when you move the mouse cursor over each object you can move it or delete it, depending on where you moved the objects
if the objects are outside the taskbar, under it, move temporarily the taskbar to another side of the screen on that same menu i mentioned in the option screen edge
to add another taskbar, in the taskbar, after unlocked it, panel options/add panel/empty panel
put it wherever you need it and add the elements you need, it is more simple to put links there that are already on the start menu so create a start button on this new taskbar and form that menu just add them, for files, i never done it, some users just add a widget called folder view
this is how it looks after i did all you mentioned

my taskbar is actually two taskbars, the one in the left contains some things and the other my most used apps and the system notifications, i removed the clock to use that widget you see in the desktop, both taskbars are set to autohide to gain space in this small netbook screen