You cannot save autotexts in a document - only in a template, so if you are using autotexts the user will need access to the template with those texts and that is the template referred to.
The second part of the code is what inserts the autotext entries at the bookmarks and is required. It is called for each entry in the combobox from the first macro. Entries in a combo box start from item 0 (as shown). I have only shown two entries, but you need a similar entry for each combo box item with the bookmark name, the path of the template and the autotext name from that template.