Two midi controllers and Organelle

Hello! Is it possible to use two midi controllers (Arturia Keystep and Arturia minilab mk2) with Organelle? Do I have to buy a MIDI merger or is there a way to program Organelle that it recognizes two midi devices?

I use a Korg Monologue and a Novation Circuit rather well together but they are routed thru each other so one both control notes and the Main “korg” control BPM