To go through a certain thing or pass it you have to have a item in your inventory. How?

[awesome_potato]

Check out this:

How to add purchasable walls/barriers. (Difficulty: )

This guide is for Gims who want players to spend something to make a wall appear. This system can be used in situations such as Bedwars, Capture the Flag, Tagging games, etc. I have separated it into three sections below: Vending Machine Walls Connection Now we have a wall that has to be purchased by players for their respective teams. You can easily add more props and wire them to the same Vending Machine and Lifecycle device to make chains of walls. Hope you found this guide helpful …

Basically you use a hidden vending machine → transmit on channel → barrier/prop

If you want me to post some images for the settings, you can let me know!