Load Region from file. Click this icon to open a File Selector, from which you can import both 2D and 3D Shape files, Arc Coverages, AOIs (*.aoi), and SDE Vector Layers (*.sdv). The imported regions are considered Active, and have default strategy parameters associated with them. This option is always enabled. AOIs that you load into the Area Selection tab can be in either image coordinates (pixels) or a map projection system.