OK, Click and drag one of the little black triangles on your top row of the Yama Motif ES…
connect the down arrow on the top row to down arrow on the Motif ES icon on the bottom row - up arrow to up arrow. If the Roland VK7 is connected via USB also , connect it's top row icon to the bottom row similarly.
Click on the bottom row Motif ES to open it. Upon opening it should default to showing the 'properties'…
click on each MIDI channel icon in the inputs row and outputs row , so all are available. Additionally, click the 'MIDI beat clock' button toggling that function on for both input and output
Now, open DP. Open new file , add 2 or more MIDI tracks for the Motif and 1 MIDI track for the VK7.
Open the studio menu and toggle 'On' Multi Record. Back to Tracks Overview window…
When choosing the input/output for each track , you should have a window open with choices as to which MIDI channel you want on what device. Choose one… 1st Motif track > choose Motif ES1-1 , etc. etc.
Repeat the same process for the VK-7 . I find it handy to create a template file with 16 MIDI tracks for each keyboard , already assigned with inputs and outputs and put all tracks inside a tracks folder and label the folder the device's name. Maybe this will work for you. I'm guessing you're using the Motif as your device to play the parts in to each MIDI track, correct ? If so, remember to go to the global mode or
whatever the name is on the Motif and toggle the 'local control' function off if you are recording on Trk 1 MIDI channel 1 in DP and the same in your Motif. If you don't , you'll get a MIDI feedback loop and nothing will record and sound right on playback - if you weren't already aware of this.
Now, if this connection method does not work, I see you have an 828 mk2 in your setup. Unplug the USB cable that connects the Motif from the computer. GO to AudioMidi setup and disconnect the software connections you made between the top & bottom row Motif icons. Make the software connection between the 828 and the Motif. Next, get out 2 MIDI cables and physically connect the Motif to the 828's MIDI connectors. However, the Motif 'in' should connect to the 828 MIDI 'out' and the opposite with the other cable as opposed to the USB software connection's down triangle to down triangle etc. Everything else should be the same inside DP. Unfortunately , the 828 only has 1 pair of MIDI connectors on the backside , so your VK-7 will have to sit things out or you'll have to physically move the connectors when you want to record MIDI tracks with the VK. (Or , you could run a 3rd MIDI cable from the Motif MIDI 'Thru' connector to the VK-7 MIDI in and play the parts you want the VK7 to play from the Motif)
It's been awhile since I've done things like that and I'll have to get the books out, so don't quote me. Lastly, I'd come over and kick ya to get ya started but I don't know where ya live…
I hope this helps - Schweats