The code I posted will work, although I admit that for a non-programmer it might be a bit of a challenge.
If you want to learn how to use Velo, you can read the following introductory materials:
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About Velo by Wix - what Velo is and what features it has.
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Getting Started with Velo by Wix - step-by-step tutorial on how to start using Velo.
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Onboarding to Velo by Wix - introduction to Velo with short tutorials.