If you un-tick display container it will remove the container, so it's not an ideal solution. - To do this you can go to a modules settings page / scroll down / page settings / un-tick Display Container.
To use the standard Solpart menu in the container, if you view a container from the DNN blue skin you will see how it is done, or view any of the earlier skinning tutorials from Issue no 5 & 6
. All you need to use is this token: [ACTIONS]
If you are using v4.3 I would currently recommend to use the [ACTIONS] token and use Solpart as the container menu due to the errors with the drop down list.
For a horizontal menu with dropdown submenus I would use the Solpart menu. - Solpart is currently being used on DNN Creative, but on any new sites I build I use the HouseMenu and create pure css skins for better performance and quicker loading times.
Because I use the HouseMenu I do not use drop down sub menus, I tend to use the method that is outlined in this tutorial How to create Horizontal CSS menus in DotNetNuke using the HouseMenu
or a combination of a horizontal and vertical menu.
Eventually DNN Creative will be using the HouseMenu with a pure css skin when I get time to re-design the site.
Hope this helps,