There is no option for updating Dependent Systems via Batch Update. Unfortunately, there are certain System and Account properties that are unable to be updated this way. All of the available parameters are listed on the Batch Update page in the TPAM web interface.
An alternative is to create a CLI or API script using the "UpdateDependentSystems" command.
Please see the TPAM Administrator Guide for more information on this command as well as a full list of all commands available