Cms is a content management system that collects, organization, publishes, and manages creative content.

Yup! That's right:) Here's the official definition:

A content management system (CMS) is a software application or set of related programs that are used to create and manage digital content. CMSes are typically used for enterprise content management (ECM) and web content management (WCM)

There is a little paper clip at the bottom of your screen and then you click then you pick the picture you want