As your document becomes more complex, you may find you need to control which elements are in the foreground and which are in the background. You can do this by selecting the desired element be it a shape, a line, or a text box) and using the *Bring to Front icon to bring the selected element to the front or the Send to Back icon to send it to the back. In Gliffy Online, you can also send elements to the front or back by selecting them and right clicking to select these options in the context menu.