Like most files in Mac OS, the MOTU device name folder has limited access (a.k.a. Permission). This access limitation can be easily fixed by following these steps:

1. Quit all applications
2. Log in to your "root" user... the main administrative account.
3. Open Mac HD > Library > Audio > Midi Devices.
4. Inside the Midi Devices folder, single click on "MOTU" so that it is highlighted. Then choose GET INFO from the FILE menu.... a window should appear called "MOTU Info"
5. In "MOTU Info", click the arrow next to "Ownership and permissions". It will probably look like this:

Owner = (name of the root user)
Access = Read & Write

Group = staff (me)
Access = No Access

Others = No Access

Here, simply change "Group" Access to "Read & Write", and "Others" to "Read & Write" as well.

6. Close the "MOTU Info" window.
7. Logging into other accounts will now allow patchlists to appear in DP4.