Clicking on a TabItem's tab in the design pane should move you to that TabItem's contents. Also, placing the caret in a TabItem's XAML should move you to that TabItem's contents. Maybe try it with this:
<TabControl>
<TabItem Header="Tab 1">
<TextBlock Text="Text 1"/>
</TabItem>
<TabItem Header="Tab 2">
<TextBlock Text="Text 2"/>
</TabItem>
<TabItem Header="Tab 3">
<TextBlock Text="Text 3"/>
</TabItem>
</TabControl>
Mark Salsbery Microsoft MVP - Visual C++ :java:
