Yes, there is, using a DAW (digital audio workstation). However, if you’re going to go to all that trouble, it might be easier to use a fresh MIDI source file and start from scratch. There are tutorials that will get you through the basic steps however, I don’t think they include the process of trimming (cutting) the sections and repositioning the sections so that they can be used to shape the song. They’re oriented toward helping users to create one-press songs. Unless you want to create your own transitions and fills from scratch using the DAW, you’d also have to find and copy sections from default content to your song for the fills and transitions.
Click on this link and there are several helpful links embedded. The one you’re interested in would be acronyms.
Most of the posts with user-created content indicate the type of song (OPB or jam, etc).
Example: Ramblin' Man - DOP, OPB & OPBk