Creating A Services Page
Using Jamroom
There is no way other than altering the menu's HTML itself via the template editor or via FTP.
This doc shows a couple of methods to alter the HTML of the templates:
"Creating your own skin"
https://www.jamroom.net/the-jamroom-network/documentation/skins/839/creating-your-own-skin
But what I would probably recommend more than that is to try out the Site Builder system.
Its in Beta now, but it gives you a lot of easy control over what I'm guessing your trying to do.
It allows you to add menu items via an interface rather than code and it allows you to create pages via drag-n-drop including anything you could have made with the "Page Creator" and more.
To turn it on, go to the admin control panel on your site:
ACP -> CORE -> MARKETPLACE -> TOOLS -> RELEASE CHANNELS
And activate the BETA channel.
Then go to:
ACP -> CORE -> MARKETPLACE -> search for 'site builder'
its the "Site Builder Core" module that your after. Install that.
When you are looking at the top page of your site, you will see a "Site Builder" button in the bottom left. Click that to add pages and customize the pages.
It should give you a lot of flexibility in design.