After enabling the plugin, a plugin icon will be generated on the right side of the topbar
Left click on the plugin icon , insert a index list to current document
Right click on the plugin icon, show more actions
CTRL+ALT+I Quick Insert
CTRL + ALT + OInsert Subdocument Index and Outline
CTRL + ALT + PInsert current document outline
CTRL + ALT + NInsert notebook Index
