Hello dsl25,
Thank you so much for using Corporate Plus theme.
1. Corporate Plus is one page ready theme. You can make the home page one page ready without sidebar.
2. You have options to choose sidebar in inner pages as well. You can set no sidebar for inner pages from Appearance > Customize > Layout/Design Options > Default Sidebar Layout.
3. Please have a look on the documentation for more details about sidebar.
If you have any more query, let us know.
Regards,
Acme Supports