One easy way to control selections in our online vector editor, Raven, is to use the lock feature. Locking a shape will prevent it from changing any of its properties, i.e. its location, scale or color. This really comes in handy for selections. If you have several shapes that are overlapping and only want to select some of them, locking the layers you don't want to select and then dragging a selection box around them all will only select the unlocked shapes. A very slick way of controlling selection. Not only can you toggle the locks on individual shapes, but you can also toggle them on entire layers of shapes!