Form sections in Aware IM have grid-based layout with multiple rows and columns. The default forms have one column but you can insert more if desired. You can move attributes between the cells in the grid using drag and drop (click a cell, then click it again, hold and drag to a different location).
You can create tabbed form by adding a separate form section for each tab. Form sections are separate from each other and you can place the same or different attributes on different form sections.
Please have a look at the sample application design in the Configuration Tool for examples of using both multi-column and tabbed forms.