WBS in smartsheet.

Hi. Is there a way that I can have a dewey decimal system kind of the numbering for the items on my worksheet. I have found a solution that lets me have items numbered in the format 1.1 and 1.1.2 and etc. But I want a system where I can have the format and etc; How do I make sure that there are two digits shown (even if one digit is zero - like 01) in each component and also always have four components shown (that are separated by 3 dots)? Please let me know if someone know how to get this format! Thanks in advance :)

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