Yes you can do this easily, To accomplish that you have two options:

If you are using grunt:

you can create an empty html file in any sub-folder in the templates folder and then from the command line run:

(  grunt assemble:default  )

OR

(  grunt assemble:topbar  )

depending on the layout you are using (e.i, default or topbar) any of these commands will generate a new HTML file containing the navbar and sidebar and the essential components and JS, CSS files.

Manually:

Open

( templates/layouts/base.html )

file and copy the content to a new empty HTML file and replace {{ body}} with the contents of one of the following files:

( templates/layout/default.html ) OR ( templates/layouts/topbar.html ) depending on the layout you are using.