What does checking SUVmax=4.1 in pKCT mean? Please help to explain this to my friends, thanks! Urgent

The above toolbar inside the group editing tools, selected with the form tool in order to show up, its position can be arbitrary Totally change, a *** five icons, the first is a black tip; the second is a pencil; the third is an eraser; and then the last four in turn is to delete rows, insert rows, delete columns, insert columns icon. You select the cell, and then point to this icon can increase or delete rows or columns.