This tool can be accessed via Web | Templates | Constant Editor. It is mainly used to edit standard templates (for example, text and background color) by modifying constants. (We saw how to define constants in TypoScript in the Constants section above.) However, as we will see, the Constant Editor only makes sense if there is additional data within the constant definition.
The Constant Editor can only be used effectively if constants are appropriately commented. These comments tell the constant editor what the constants are used for. For example, the constant example introduced earlier contains the following code:
myText.Content = Hello World!
myText.Content is a constant, but without comments it cannot ...