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.
This feature is only available on the premium version. If you use our pro version, you can set the required layout on individual pages.
Please check our demo of the pro version as well, so that you will get additional features as well.