====List====

A list is a way of sending multiple values for a single property.

In this case, the values are placed together in a single piece of text, with a symbol (usually a '|' symbol) separating them. 

For example, if you'd like to send three numbers in a set called 'ladder', and separated by '|',  you'd use the following...

<code>
ladder="0,10,30"
</code>

An alternative way of transmitting many points is through a [[set]].