yes.
But for using "reloaded/on top" you need at least one working disk, so you can't use the new unformated disks. If using the old disk, be sure to rename the existing 'ffp' folder to something else, to avoid possible colision between Alt-F and ffp applications.
And after Alt-F starts working in reloaded mode, you will need to eject the disk (hot-plugging, without powering off), in order to format the new disks; and after that you need to setup "reloaded" on the new disks before powering off; and when rebooting I don't know if the D-Link firmware will work with the 3TB disk, in order to start Alt-F...
And even if you format one disk at a time, you will have problems using reloaded, because the D-Link firmware only launchs the funplug script (used in reloaded mode) when it is found on the right disk (or is it left?)
Too many "if", if you are not an experienced user. Flashing is much simpler.
Some users found some issues when using the wizard to format 3TB drives, but that can easily be solved.