Yes , but you must read.........
4.now ftp to your receiver and move open-multiboot-upload folder to /media/usb replace
give permissions 755 on inside files
5.move any nfi image to /media/usb/open-multiboot-upload (one for every time)
6.edit unpack-nfi.sh file in the last line and replace "OPENSPA" with your prefer name for image
if use hdd must change WORKDIR and INSTALLDIR
7.telnet to /media/usb/open-multiboot-upload and give this command $ ./unpack-nfi.sh
Wait about 10 min and( you can see on terminal finish of job) your new image extracted to /media/usb/open-multiboot dir
8.reboot your box
9.On openmultiboot interface you can see new images select the new and press Ok
YOUR RECEIVER REBOOT ON NEW MULTIBOOT IMAGE.