Toolbars hold icons which provide the same functionality as program menus, but are more directly accessible. You can hover the mouse over the icons to see what they represent. By default the toolbars are located on the left side of the program window, but you can drag them by the double lines to any edge, or out of the window entirely as a floating toolbar.
There are 4 toolbars which can be individually positioned, shown, or hidden.
Right clicking on a toolbar will present a context menu to show or hide them. The toolbar configuration will be saved and restored with the program options.