These are my only options available:
Why can't I see "Launching Opus"?
The Launching Opus section isn't there in the Light version. It's mainly for Explorer Replacement, which isn't part of Light.
Here's a summary of the Light vs Pro differences: https://www.gpsoft.com.au/program/pro-lite.html
If you're still evaluating Opus, you can switch between Light and Pro to try both versions, via Help > Licence Manager.
On the other hand, if you've bought a Light licence and want to upgrade it to Pro, you can do so for the difference in price between the two here.