You can copy your MyImports SketchUp files to another computer by doing the following.
1. Start Windows File Explorer and make sure "Show hidden objects" is marked.
2. Go to C:user>username>Appdata>Roaming>Ecdesign>Ecdesign4>Assortments
3. Copy the folder called MyImports
4. Paste the MyImports folder into the exaxt same position as described above (2.) on the other computer.
The models will now be available on both computers.