The iCM Forms Designer is divided into two main sections.
The central design area displays the pages of your form. You can add new pages, and move through them, using the tabs at the top.
The right hand column is known as the toolbox. It contains the settings for your form and all of the field types that are part of the form family your form is using. You can add fields to your form by dragging them from the toolbox onto your page, and edit existing fields by selecting them and loading them into the toolbox.
Check out the Form Tutorials for guided exercises that will get you up and running and building your first forms.