You'll have to create a new template based on what menu you want.
From the forums:
You can easily make a new template from it with only the title menu, the extra menu pages will not be generated.
Open the appropriate template INI file in Notepad if you have CX2D version 22.214.171.124 or later. For earlier versions, you must use Wordpad (see note below) if you do not need to preserve script language characters in the template description or another editor that can save in UTF-8 format without byte order marks to preserve script characters.
Go to the lines
N is 1 if the template allows only a title menu. It is 4 for those that allow only title, root, chapter and setting menus, it is 8 for the Thriller menu. For all of them presently supplied by VSO, the last three are for the root, chapter and setting menus.
So the root, chapter and setting menus will not be generated for present templates if N > 1 is reduced by 3 (4 reduced to 1 or 8 reduced to 5). Future templates will have to be checked to be sure the root, chapter and setting menus are the last three before using this fix.
Go back to the top of the INI file and find the [CXT\localized_names...] section that describes the template in your language. Change the name of the template to indicate a template with no root menu, I simply add NRM to distinguish it.
Click File>Save As... and provide a new name for the INI, add NRM to the original name for example, and save it to the same folder as the original INI.
Your new template should be available to choose the next time you start CX2D in addition to the original with all the menu page types.
Wordpad Note: SteveSatch pointed a bug in Wordpad out that can keep CX2D from recognizing your new changes if you have the default setting in Windows to not display file extensions.
Take your time it works. Remember to add _NRM to your new template so you don't overwrite the original.