hey guys, right, ive seen this in quite a few maps and yet i have never found a tutorial to help me do this.
There is a great example of this in bazaar.

I want a player to be able to hold the use button on a model, and the model disappears, and then at another point in the map, the player holds the use button and the model re-appears, aiding them in progressing in the map (e'g a wooden board to cross over water in bazaar).

Can anyone either point me in the direction of the tutorial i'm missing or help me to understand how to so this, it would be greatly appreciated.

Thankyou, Jake (zmRappiidZz)