Correct all our templates use the built in flex menu.
* The main menu position isn?t really a module position in the traditional sense, the site menu is hard coded in the menu position and it cannot be replaced with a different menu from another module by publishing to the "menu" position.
Correct its not a position but built in. You could custom code a module position to be in place of this menu to use any other menu system you desire.
* If you put a menu elsewhere, it can only be tire accordion menu. The accordion menu is a menu for a sidebar as it does not have a horizontal display mode.
Correct, unless you use a 3rd party menu
* This template only allows use of the built in main menu, the standard Joomla menu or the S5 accordion menu and does not allow any 3rd part ones like CKmenu