I have to change autonumbering to manual numbering because I have to change the
123 list format to abc formats and abc format to i,ii,iii and they are not multilevel lists and it was formatted into multilevel by indenting text if I had to change the list format and then update the styles then they would have caused the text to move and cost me more time so I thought changing them to manual numbering and then changing the list would save me some time so I chose that option.

And I wanted to write a code that would be more dynamic than this. So, i posted it here so that I could learn more. Would you please show me how can this code be written more efficient way??

Thanks in advance.