Vortex Sound Research

Hi everyone. I just bought a Waldorf Blofeld Desktop, and I receveid it without MIDI cables. I will get some on monday. But until then I'm trying to connect it to FL studio with a USB cable. As I understood, I need to match the port in the MIDI options with the same port in the MIDI OUT plugin. I have done that, and tried all the channels but I'm not getting any sounds. Does anyone know if it even is possible without the MIDI or am I doing something wrongly?

Thanks in advance