Hi, Welcome to the Forum safacon !
Here are all important links:
http://lmms.io/forum/viewtopic.php?f=1&t=4740
-A few rules and useful forum instructions
I really doubt it. -And i also think your approach is strange.Is there a way to send the midi clock out to a midi channel?
What HW are you using with LMMS?
The way DAW-midi works, is that you make a input from the MIDI-HW, into the PC, that is running the DAW.
The DAW will then process this input, and you will hear the sound in the speakers, connected to your PC.
If you like to create an arpeggio, you let the DAW process the input, through am arpeggio gadget in the DAW (All LMMS instruments has an arpeggio-gadget, so does most VSTs).
The arpeggio capability in your MIDI-keyboard, is not supposed to be used at all, when you connect to a DAW in a PC, that is for solo-play on the MIDI-keyboard!
What is the brand and name of your MIDI-keyboard?