VEAI v2.0.0 adding old models from older installations

I have more than one Topaz VEAI installation on the same Windows computer in order run different version.
For example (using random numbers), I have 1.3.0, 1.5.2, 1.7.1 and 2.0.0 side by side on the same machine.
I have heard it would be possible to copy old models into 2.0.0.

How can I integrate the old models from my other installations in 2.0.0 please?

Any way to rename them manually so that they can be found easily?

No reply?
install each version from oldest to newest but uncheck the clean install box each time

ok, thank you