The Open Platform dialog box is displayed when AMU is launched directly in standalone mode and also when you select Open Platform from the File menu. The dialog box contains the list of all configured platforms. Select the platform you want to manage with AMU from the drop-down list.
Note: To configure a new platform, select Open Visual Editor from the File menu.
While the AMU client is running, you can select another platform to manage by first selecting Close Platform from the File menu and then selecting Open Platform.