Creating Show Forms 
The Showform is for displaying an individual item such as a news item. You normally display all elements of the item in question on this form, for example, the title, image, summary, and body text for a news item.
Procedure
Use Drag&Drop to pull the elements of the data model that contain text onto the RenderListItemform.
By default, you use Drag&Drop with the primary mouse button to create label controls with a reference to the elements of the data model. You can change this behavior using the Drag&Dropproperty of the Editform.
You use Drag&Drop with the secondary mouse button to create any controls.
For more information, see Creating Controls.
Optional: Add images.
For more information, see Embedding Images in Forms and Allowing Authors to Insert Images.
Arrange the controls on the form.
For more information, see Arranging Controls on a Form.