I just got the idea from this article: http://www.codeproject.com/Articles/190/A-Visual-Framework-Views-Tabs-and-Splitters Basically I just wrote this in the MainFrame:
m_wndSplitterHor.CreateStatic(this, 2, 1)
m_wndSplitterHor.CreateView(0, 0, RUNTIME_CLASS(CSampleCollectList), CSize(280,300), pContext) //View 1
m_wndSplitterHor.SetColumnInfo(0, 200, 0);
m_wndSplitterVer.CreateStatic(&m_wndSplitterHor, 1, 2, WS_CHILD | WS_VISIBLE, m_wndSplitterHor.IdFromRowCol(1, 0))
m_wndSplitterVer.CreateView(0, 0, RUNTIME_CLASS(CSampleTree), CSize(250,0), pContext) //View 2
m_wndSplitterVer.CreateView(0, 1, RUNTIME_CLASS(CSampleCollectList), CSize(250,0), pContext) //View 3
But now im stuck with tab control in View 3. Any idea?