How do I make a drop-down menu in C2?

I've seen some games made with C2, when a player touches the object, a description slides down below the object. For example buying item at a shop, when you tap the item, a description slides down below the item and when you untap the item the description slides back up and disappear, does anybody have an example event sheet for this?

bump....

There is a dropdown menu object called "List".

Partly depends on what its behind. If the object can cover the menu then just put it behind it and scroll it down and up (how do you "untap" .....). If it doesn't, then you will have to break it up into bits and make them visible as they get below a certain coordinate.

paulscottrobson gumshoe2029 Thank you