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If you are not dragging your control over a group control, this means your control will be placed at the top of your form. Anywhere to the right of the print  icon is a droppable area.  

•   This means your tab or table column will move to the right of the tab or table column on which it is being dropped. This applies only The Image Added icon only applies to tab and table controls.

Other important drag-and-drop rules:

• If you let go of a control while the  icon is showing, your control will go back to where it was—either back to the Palette or where it was in your form before you tried to move it.   You can only drop individual tabs in a tab group on other tabs in the tab group (and you’d do this only if you wanted to rearrange the order of the individual tabs inside a tab control).  
• You can never drop any control directly below a group control. If you want the control you are dragging to go below the group control, drop your control above a different control that is below the group control or first move the group control. Remember that the Submit and Cancel button are controls, too. 
• You can never drop two different controls into a repeat control—for example, you cannot drag in a quantity control if your repeat control already contains an email control. If you need multiple controls inside a repeat control, first drag the controls into a section, then drop the section into the repeat. Once the section is inside your repeat you may not add anything else to the section, so build the section first in this case. You also may never drop a panel, tab or another repeat control inside a repeat control, nor may you drag in trigger, video, image or link controls. See Repeats for more details.

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