Many SAP PI admins have asked me if there is any authorization which can be used to limit transporting PI objects to the clients - leaving only CTS+ transports for everyone. I don't know any way to do that using the autorization but there is a way to disable file transporting in general. PI allows doing transports using file as per screenshot below.
There are two parameters in the Exchange Profile which can disable file transporting
a) one for disabling it in the ESR - Enterprise Service Repository - com.sap.aii.ibrep.core.transport.enableFileExport
b) one for disabling file transports in - ID- Integration Directory - com.sap.aii.ibdir.core.transport.enableFileExport
What you need to do is to add those two parameters with a boolean type and don't set the value (as the value needs to remain false).
Once you do the steps above it will not be possible to use exporting options in the ESR and ID as per screenshot below.
Note
If your CTS+ is available this will be the only option to do the transports from now on unless you change it in the Exchange Profile again.
Please let me know if you're using this option.