Sorry for the lack of documentation.
You can access all the shortcode by activating Theme4Press Core Plugin.
After activating the plugin, you can go to Add Page.
In the WordPress content editor, you will find a button with the number 4 icon.
Please see screenshot. http://prntscr.com/8b8fs4
Click on that button will bring up a shortcode creator user interface.
You can choose which shortcode to create, there will be options available for you to choose. Please see screenshot. http://prntscr.com/8b8fxn
Hope this helps.