Tabs underlay special mode buttons

[radikal]

When a game has a large number of tabs, you provide some buttons to navigate the tab row left and right. However, you do allow the tabs to appear under the special button (Stacking on/off, Terrain on/off, Hand, Undo, Redo). This causes some confusion and missed clicks. Please consider adjusting the displayed width of the tabs to stop short of appearing under the special use buttons.