When you choose New… from the File menu, a standard file dialog is presented:   In addition to the standard controls to navigate and enter a RAM disk name, there are a few extra controls. The popup menu allows you to choose the size of your RAM disk. There are several pre-selected values, and you can enter any value if you choose "Other…". If Startup Items Folder is selected, a folder called "Startup Items" will be created automatically on your new RAM disk. Any files (or aliases) in this folder will be automatically opened when the RAM disk is mounted. This powerful feature allows you to conveniently open documents or applications when you start your RAM disk. The Open Status Window control determines if the settings window for the new RAM disk will be visible initially. This is only a convenience option, because you can always open and close the settings window after the RAM disk is mounted. The Automount Volume feature lets you start up your computer with a RAM disk already mounted. It works by automatically placing an alias to the new file in the startup items folder.