I am a neophyte (okay, "student") working through a second quarter of SolidWorks.  In trying to move the Line Format toolbar off the graphics screen, I inadvertently grabbed the "Line Thickness" icon inside the toolbar and discarded it.  To "carefully" figure out the damage I did, I grabbed inside the toolbar, but this time, managed to pull out t he "Line Style" icon.  Thus, I now have 4 icons inside the Line Format toolbar rather than 6.  (Attached is the toolbar is it now looks.)

Is there a way to re-enable those icons in the toolbar?  I know there are alternative ways to set the properties, but the point of the exercise is to get used to the user interface.