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Lifters can be added to any number of parts from one to all parts in the model. No matter how many parts are selected Sync will add lifters to those parts with their previously associated design files. A design file can be associated with the selected parts in the Add Lifters to Part window but only one file can be chosen so if multiple parts are selected the chosen file will be associated with all parts of the corresponding type (i.e. an Eriksson Wall File (.ewf) can only be associated with the selected walls in the model) and all other parts will maintain their design file associations.
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A progress bar will appear at the bottom of the Add Lifters to Part window with information about the status of the process with a success or failure message when the operation is complete.
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After Sync is done running Add Lifters to Part the lower part of the window will show status messages for the operation as well as any warnings or errors.