Updated for 7.0
On the left-hand side of the screen in the navigation bar, select Chassis. This will take you to this screen:
From the list provided, select the desired chassis. This will take you to this page:
In the box labelled Layout, click the Edit button located in the top right-hand corner. This will take you here:
Here, you can add, delete, and rearrange sections.
To add a section, click the + New Section located on the right of the screen and drag it to the desired column. It will look like this:
Once a section is within a column, click the Edit button to edit the section. A pop-up window will appear that looks like this:
Here, you can name the chassis cell, choose its size, maximum positions, and side.
When done editing, click the Update button.
To delete a section, click the Edit button of the desired section. A pop-up window will appear.
Here, click the Remove button at the bottom of the pop-up window.
To rearrange sections, click the desired section and drag it to where you want it to be.
These are sample names.