Activate the journal feature (logging of changes of a property value) for a [[MetaProperty]] of a [[MetaClass]].
# Connect the MetaClass to the {{CD}} control and switch to the ''[[Class DetailsClass_Details#ClassificationMetaProperties|Classification MetaProperties View]]''<br/>[[File:UI Classification_02.PNG|220px|border|alt=Classification|Classification]]
# Select the MetaProperty you want to activate the journal feature for
# Enable the checkbox "Changelog active" in the details of the [[Relation_Editor#Relation_data|relation data]]
<br/>[[File:ChangeLogActive.jpg|220px|border|alt=ChangeLogActive|ChangeLogActive]]
# Save the changes with {{key press|Ctrl|S}} or the save command