This gadget is used to name the files produced by MPRender.
The file name can be either edited in the string gadget or by using the Get File to display an ASL file requester.
The file name should contain the characters %ld. These characters will be replaced by the frame number, starting from that specified in the Start gadget.
n can be used to activate this gadget - See "Keyboard.
See File naming for further information on how to specify the file name.