Please go to “Pages > Add New”, click “BM Content Builder”
Click “Insert Template” on the top tools bar .
The placeholder layouts panel will be shown, you could insert some layouts including the placeholder layouts including Home Page, Single Projects, About/contact, Blog, and Sections.
The gray boxes are the placeholder images, you could replace them as your own images, check more
Insert template – Video Guide
Save Layout as Template
Click “Save Layouts as Template”, you could save the current layout as a new template. You would find the template in the “User” tab(Click “Insert Template” to find it). You could also save a Group layout to a new template.