Grid Settings
Click the Set Grid 
 button in the UserDialog Editor to display the Grid Settings dialog, which is used to adjust the grid display in the UserDialog Editor. The grid is displayed on the user form to help align the controls placed on it while you edit it.
Horizontal
                                    
                                 Enter the grid line width space that you desire into the Horizontal field.
                                Vertical
                                    
                                 Enter the grid line height space that you desire into the Vertical field.
                                Show Grid
                                    
                                 Select the Show Grid check box to toggle the display of the grid in the UserDialog Editor.
                                Grid Snap
                                    
                             Select the Grid Snap check box to toggle the drag-and-drop behavior on the user form editor. If Grid Snap is selected, then controls placed onto the user form will be automatically aligned to the displayed grid. If Grid Snap is cleared, controls can be dropped anywhere on the user form without being aligned to the grid lines.