constants GroupPopupEnum
The GroupPopupEnum type specifies whether the sub-menu of the current item is shown as grouped. The GroupPopup property specifies whether the sub-menu of the current item is shown as grouped. The GroupPopupEnum type supports the following values:

NameValueDescription
exNoGroupPopup0 No grouping is performed on the popup item.
exGroupPopup1 Groups and displays the sub-menu items on the current item, arranged from left to right ( by default, the items are horizontally arranged ).
exNoGroupPopupFrame2 Prevents showing the frame around each grouping item. If the exNoGroupPopupFrame flag is not present, the control shows a frame around the grouping items. The frame around grouping items can be a solid box or EBN frames. The Background(exGroupPopupFrameSolid) specifies the  color to show the frames around grouping items, while the The Background(exGroupPopupFrameSingle), Background(exGroupPopupFrameHStart), Background(exGroupPopupFrameHIntermediate), Background(exGroupPopupFrameHEnd) specifies the EBN to be shown for single element, starting element/item of the group, intermediate elements, and ending element/item. The exGroupPopupFrameHStart, exGroupPopupFrameHIntermediate and exGroupPopupFrameHEnd are valid for horizontally grouping items ( exGroupPopupVertical flag is not present ).
exGroupPopupCenter4 Shows the grouping popup aligned to the center of the current item.
exGroupPopupRight8 Shows the grouping popup aligned to the right of the current item.
exGroupPopupEqualWidth16 Shows the items that make the group of the same width.
exGroupPopupEqualHeight32 Shows the items that make the group of the same height.
exGroupPopupFrameSolidBox64 Forces the grouping items to show the solid frame (exGroupPopupFrameSolid) rather than EBN frame. The exGroupPopupFrameSolidBox flag can be combined with the exGroupPopupFrameThickBox to specify a ticker solid frame. This flag has no effect if the exNoGroupPopupFrame is present.
exGroupPopupFrameThickBox128 Specifies that the grouping items shows a ticker frame. The exGroupPopupFrameThickBox flag can be combined with the exGroupPopupFrameSolidBox to specify a ticker solid frame. This flag has no effect if the exNoGroupPopupFrame is present.
exGroupPopupVertical256 Arranges vertically the items that compose the group ( by default, the items are horizontally arranged ). If the exNoGroupPopupFrame flag is not present, the control shows a frame around the grouping items. The frame around grouping items can be a solid box or EBN frames. The Background(exGroupPopupFrameSolid) specifies the  color to show the frames around grouping items, while the The Background(exGroupPopupFrameSingle), Background(exGroupPopupFrameVStart), Background(exGroupPopupFrameVIntermediate), Background(exGroupPopupFrameVEnd) specifies the EBN to be shown for single element, starting element/item of the group, intermediate elements, and ending element/item. The exGroupPopupFrameVStart, exGroupPopupFrameVIntermediate and exGroupPopupFrameVEnd are valid for vertically grouping items ( exGroupPopupVertical flag is present ).