Bigger on the inside - Test Render

I know this has been done a great deal - and I'm not really adding anything new. But it is a technical challenge and no TARDIS is complete without being bigger on the inside.
If anyone knows how to use the material pass index in Eevee, I would really like to know. All the settings are there but there is no output on the render layer node in the compositor. Using the keying node has led to some imperfections in the effect.

[@zstrebler1234]

I can't overstate how much I love this. Absolutely beautifully done. I wish you'd designed the season eleven interior

[@MoonBoots1980AD]

Wow! This is fantastic! your console room really is excellent! Up there with Capaldi’s for me!

[@DB_137]

Ooh, nice!

[@blakeybarra822]

Where do you find these great soundtracks

[@snowteea]

You How do you animate

[@ThetaSigma]

I use Blender

[@snowteea]

@@ThetaSigma thanks you

[@lifeofharrywebster6221]

Would you do better war doctor tardis

[@ThetaSigma]

I think the version in the series was the Eccleston console with roundels? Do you think the actual War Doctor TARDIS should be old and damaged looking?

[@legreatpotato8888]

How did you do that