I can't name this element

Dear all, I'm trying to find a name for this element: it appears in the upper left corner of a JSP execution page and when you point the mouse over it, a set of icons appears (as if hidden/displayed). See attached. Does it have a name? Any help appreciated! Mathieu. _

I can't name this element

Dear all, I'm trying to find a name for this element: it appears in the upper left corner of a JSP execution page and when you point the mouse over it, a set of icons appears (as if hidden/displayed). See attached. Does it have a name? Any help appreciated! Mathieu. _