As you implemented your data model with WissKI's pathbuilder , you automatically create input and display forms for your data. You can manage the WissKI Entity and it's field under Manage Structue WissKI Entities and Bundles.
WissKI Entities and Bundles is the place where you can change the field labels. This do not change the field names in pathbuilder . Pathbuilder creates the initial configuration and updates the formatter if you alter them, but do not change the field names in WissKI Entities and Bundles. If you change a label of a bundle or field, you have to change it in pathbuilder , too. Only the labels from WissKI Entities and Bundles are displayed in the frontend.