Unfortunately, I don't think that Nebula Free presets will transfer over to Nebula Pro. You would be better off reinstalling Nebula Free, opening the projects, and replacing the presets with Pro. Or just finish the projects with Free and start using Pro on new projects. Also unfortunate, I don't think that it's a great idea to have both installed at the same time unless you have 2 separate repositories for the program and vector files.
Nebula FREE and PRO has different fixed path in OSX. Copy the FREE preset from Vector and Programs folders to PRO folder. This emulation preset are free not crypted should work. Then ask for a customer key for PRO and download Acustica Audio library.
Enrique Silveti. Acustica Audio customer and technical support.