readOnly

Type: Boolean
Required: No

"readOnly": false

This property indicates whether the Engineering has write access to the attribute or only read access. By default, write access to an attribute is available. If readOnly is set to true, the attribute is no longer displayed in the Engineering Properties window, but it can still be used via the Actions and Conditions Editor.

readOnly 1:

For read only attributes, the propertySetterName is not required and can be replaced by an empty string.