So basically look at one of the recent examples I posted for the Prophet REV2 on this forum. Open the text file and see the CC numbers listed in the file. Look at the Oberheim CC numbers and literally cut and paste them into the text file, replacing the CC numbers I’ve used for the REV2.
That should get you started.
Make sure you set the midi channel number etc. correctly at the top of the text file.
NRPN numbers don’t work too well at the moment as they use the same midi implementation as Sequential, so don’t bother with these for now - perhaps delete them from my file as they won’t work for your OB.
Here is the link :
Copy the text into a blank text file etc.
Read the manual on where to save files. It’s a 1 minute read, literally.
Hope that helps