I have tried all the below but they dont work. Only the first one turns yellow even with the shift key down and I drag the mouse along with the left key depressed.
When the Shift key is pressed, multiple objects are selected. You can open up a rectangle positioning the mouse over the object, then holding down the mouse button and marking all objects within the rectangle (”elastic band selection”) by left-click-dragging.
Any object can be combined with others to make up a group, to avoid the objects being unintentionally moved out of relation to each other. Once they are combined, clicking on one object of a group will select the entire group. To group or ungroup objects, use the buttons in the tool bar or the corresponding commands in the "Edit"