Hi Tanya,
Unfortunately, the LabKey Server Trial version only allows the GPAT since it is meant to be a simplified version of LabKey to test with.
On our trial sign-up page, we specifically state what features are missing in the trial, Luminex being one of them:
https://www.labkey.com/trial-sign-up
If you have the means, you could install the community edition of LabKey on your own hardware and test your Luminex data out.
https://www.labkey.org/Documentation/wiki-page.view?name=config
This would require more setup work on your end, but you would be able to accomplish your end goal of analyzing your Luminex data.
Regards,
Jon