"collapsible headings" function like in MS Word 2013?

I have LibreOffice Writer 4.3. I’m trying to make a template form to use for a long narrative report that I will reuse over and over. I’m using the trial one month version of MS Word 2013 and it only took me 15 minutes with the new “collapsible headings” function to make the template but it doesn’t convert over into LibreOffice. It doesn’t work. The document in MS Word is .docx is that the problem? Or is it something else? If I can’t move the MS Word document over then …How can I get LibreOffice to have “collapsible headings” so I can open and close the body which would enable me to edit the document without scrolling through pages and pages to find the correct section I wanted to edit.