Each Query Designer window consists of:

Palette

The palette of the elements.

Scene

The main drawing scene is the place where elements are constructed into a schema.

Property Editor

Provides information about a currently selected element and allows configuring it.

On the image below you can see these components in a maximized Query Designer window:

<center>
     <br>
     <img src="/wiki/download/attachments/4686202/Query Designer Window Components.png"/>
     <br>
</center>

All these components are resizable and can be adjusted to individual needs.