Information on the data types settings section
Allows you to configure the behavior of data types.
Gets or sets a value indicating if data types can be changed after they've been used.
Valid values:
"True"
Allows data types to be changed after creation. This can lead to data on content is not valid on the Data Type.
"False"
Disallow Data Type changes. (Recommeded value, unless you really know what you are doing)
"FalseWithHelpText"
Disallow Data Type changes, but show the users a help text so they understand why.