No problem
Current version needs to clear settings before applying new toolbars (Next release will not have this limitation)
1) Modify the web.config to include the "Default" toolbar in the AvailableToolBarSets property
2) Open your browser and clear your browser cache
3) Got to an instance of the editor and clear the custom settings (Instance, Module or porta...depending your previous applied settings)
4) Switch to another page and then back again to the editor page
5) Try to apply your custom settings again. You will now see the new toolbar