Including the components under Siderail for the template level in Touch UI

Hi All,

We need a requirement like, components must include under Siderail in the template level. 

Means, for example author must not go to design mode and select the components on their wish. Components must be available on the Siderail, once author create the page using the particular template. How we can include the components on the siderail.

My Approach: As a admin user, I can go to design mode of that page of the template and select the components and disable the design mode for the authors, so that authors cannot see design mode.

Is this a correct approcah or may I know, please how I can achieve this.

Thanks,
Ratna Kumar.