How to move DOPUS 9 USB config to new USB

I have been successfully using the USB version and have made many customisations in layout, groups etc. I just bought a new larger USB and thought it would simply be a case of copying the folder from old to new. I got a message about the certificate which I reinstalled on the new drive but all of my config is gone.

I have tried recopying the original installation and just the config folder but I can't get the old config replicated on the new drive.

Back and restore are disabled for the USB installation and the config on my desktop install is very different so I can't simply export that to the new USB.

Any ideas how to do this?

Copy DOPUS.exe and the DOPUS folder from the old USB drive to the new one, then export Opus from your desktop to the new USB drive, over the top.

When doing the export, Opus will ask if you want to keep or overwrite the existing config. Tell if you want to keep the existing config and it will just write out the new program and certificate to the new drive.

(Alternatively, you can export Opus to a fresh USB drive, then replace just the configuration folders, which is all the folders below the main DOPUS folder on the USB drive, except for the Help, VFSPlugins and Viewers folders.)

Thanks, that worked.