When you are editing a document and you need to copy-paste a list of serial numbers, you might encounter the following: all different serial numbers are entered as one number, as shown in the following screenshot:

This can easily be solved by adding commas "," between each serial number before you hit "enter". In the previous example, if you paste the serial numbers in the form "SN001, SN002, SN003, SN004, SN0005", they will be automatically entered as separate numbers: