Add, Remove and Overwrite will add, remove and overwrite the \ACPlantTools\PlantLink\LinkConfigurations\*.lcf files. The \ACPlantTools\PlantLink\LinkConfigurations\LinkConfiguration.Collection.xml will be adapted automatically when committing the changes.

Overwrite data source files will overwrite the data source files referenced in the lcf files. If the referenced file is a udl file which points to an Access database or an Excel file, then the udl file as well as the Access/Excel will be overwritten.
 

Synchronize will overwrite the \ACPlantTools\PlantLink\*.sql files.
 

Synchronize will overwrite the \ACPlantTools\PlantLink\PlantLink.xml file.