TabPagePlacement is used to change location of the tab page labels.
By default, the tabs with tab pages labels are placed one by one along the top border of the tab container.
Possible values:
Top (default): placed tabs along the top edge of the tab container.
Left: placed tabs along the left edge of the tab container.
Right: placed tabs along the right edge of the tab container.
Bottom: placed tabs along the bottom edge of the tab container.