Neo 3M virtual shifting in Tacx App

Zwift is supporting „virtual shifting“, ROUVY is supporting „virtual shifting“ in their apps.

I was unable to find options in the Tacx App to get virtual shifting working with Tacx workouts.

Am I missing something or could it really be true, that the Garmin Tacx App does not support virtual shifting directly with its Neo 3M or similar products?

Do I really need to use a 3rd party app to be able to use virtual shifting?