Custom Tag Nest for PDF Accessibility

Is it possible to create a nested tag tree as a group rather than individual create each tag? Say there is a list that needs to be tagged manually; I would have to create the <L> list tag and then any <LI> list item (and each list items’ label <Lbl> and list body <LBody>) after. Is there a way to auto-populate the nest so if I insert an <L> tag, it would already have a list item <LI> nested inside it?