Converting existing InstallShield Limited Edition setup project

Hi,

I have a setup project created in the Limited Edition of InstallShield (.ISL file), is it possible to open/import the project into a paid version of InstallShield?

It feels like natural progression should allow a project to move from the free version into a paid version of the software but at the minute I am unsure of how this would be done without having to recreate the setup project.

Regards
Matt