I have an original Kickstarter reward dual. I'm trying to complete the commissioning section of the build instructions, and I've got to the mesh levelling bit (here: http://wiki.e3d-online.com/wiki/Printer_Commissioning#.289.2.29_Mesh_Levelling_the_Dual) and it says to use Level Bed from the Prepare menu, but there is not level bed option! I'm using the firmware from E3D Firmware repo (here: https://github.com/BigBox3D/Firmware) as suggested in the instructions (here: http://wiki.e3d-online.com/wiki/BigBox_Software). Looking in the E3D Marlin repo it shows that 9 days ago the mesh levelling was disabled. (here: https://github.com/BigBox3D/Marlin/blame/RC/Marlin/Configuration.h#L527) So, I'm assuming that the current best configuration has overtaken the written instructions. In which case, how SHOULD I be doing bed levelling? Thanks in advance.