Sublevel List Numbering VBA

[Luke13]

Greetings all!
I have a list that I am trying to automate item numbers and sub-item numbering. A sample that I manually numbered is below. Is there a way to do this with a VBA?

Thanks so much for your help!

 

[Legacy 143009]

Should 1.02 be 1.01?
Also 1.02.01 and 1.02.02 rows are empty. Even are the empty rows to be numbered?

 

[Luke13]

Should 1.02 be 1.01?
Also 1.02.01 and 1.02.02 rows are empty. Even are the empty rows to be numbered?

Thanks for your reply! Sorry about that. Yes, 1.02 should be 1.01. The rows that appear empty will have labels in the subtask column - that column has 3rd-level labeling for now. Totally open to suggestions!