It is possible to create a custom fixture profile on Emphasis. Once created, it will be saved on the server on which it was created.
In Emphasis, choose File-- Close.
Under Options, choose Create New Fixture.
You will open a wizard that will step you through the creation of the fixture. This wizard is just like the one used for regular Express / Expression / Insight console fixture profile creation.
You will add parameters one at a time. Follow the fixture's manual when adding parameters to the best of your ability.
By default it will show up in the Custom library header once created.
You will now be able to re-open your Emphasis show file and patch the fixture as normal.