To number nested ordered lists , you can add the following CSS to the page MediaWiki:Common.css.
/*Numbering nested ordered lists */
.mw-content-ltr ol, .ve-ce-branchNode ol{ counter-reset: item; margin-left:1.5em }
.mw-content-ltr ol li { display: block }
.mw-content-ltr ol li:before, .ve-ce-branchNode ol li:before { content: counters(item, ".") "."; counter-increment: item; margin-right:0.5em }
.ve-ce-branchNode ol li p { display: inline}
Output:
- Step 1
- Substep 1
- Substep 2
- Sub-substep 1