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Markup text is a useful tool when designing live data objects. Often data is supplied to the sign as is, and it’s up to the sign designer to manipulate the values to appear as desired. The Markup Text option provides an avenue for the sign designer to do just that. Expressions are advanced forms of Markup Text. Similar to Markup Text, expressions can be used to modify live data. Expressions go a step further in allowing modification of how the actual data appears on the screens. They also provide an effective method of if-then logic. This can be extremely useful when certain things need to happen based on the data. Expressions can also be used in scripts and with variables.