Ruud Baars (Rest In Peace) of Microsoft hosted a DPM setting export/import tool on his skydrive called DPM-save-create-Config.
This tool contains 2 PowerShell scripts called DPMsaveConfig and DPMcreateConfig that could be used to save your DPM settings to an .xml file and then import the settings in from that .xml file. The link is here:
When you run DPMsaveConfig it creates a DPMsaveConfig.XML in %systemdrive%\Program Files\Microsoft DPM\DPM\bin.
Then when you run DPMcreateConfig it will automatically search for the DPMsaveConfig.XML and import the DPM settings from here.
The beauty of this tool is that it was created in PowerShell so you can go in and modify the scripts if you need to.
You can also download a copy of this tool directly from my blog here: DPM-save-create-Config