What kind of serial number ? You can click Report>hardware registry Another option is to use device selection https://support.kaspersky.com/KSC/13/en-US/209943.htm
You could use the device selection feature to know the version that is installed on computers and separate them by group, but the correct thing is to standardize computers with 1 language. https://support.kaspersky.com/KSC/13/en-US/209943.htm
If you are not going to use these computers, you can uninstall Network Agent. If you need to use the computers, uncheck the Network Polling option See this link https://support.kaspersky.com/KSC/SP3/en-US/3871.htm