It might worth mentioning that you can save yourself some time by using Pose2Lux's template feature:

Step 1: In Poser, rename the actor (figure or prop) which will provide the template to PL2_GENERIC.

Step 2. Run Pose2Lux and assign the Lux materials you want in the template to the PL2_GENERIC 'owner'. Ensure that all other materials are left unassigned.

Step 3. Save your scene materials. You should end up with a saved file which only contains material settings for the PL2_GENERIC owner.

Next time you load this saved material file it will apply the material settings to the owner currently selected in the Material screen, BUT ONLY if you have also selected 'Show only selected owner'. It won't matter what the name of the owner is, so long as it is showing in the Material screen and you have the 'Show only selected owner' box ticked.

You can use this technique to save a template of V4 materials, or even just the eye materials.

Free stuff @ https://poser.cobrablade.net/