The corresponding default binding for this functionality is Ctrl+F6. You can reassign this feature to Ctrl+Tab by doing the following steps:
The Preferences dialog box appears.
Under the Command column is a list of available commands. The Binding column contains the keys that can be used to invoke the command. The When column indicates when this command will be executed.
For the debugger, the keys to change are Step Into, Step Over and Step Return.
By default, these key bindings are set to F5, F6 and F7 respectively. In order to change the key sequence for Step Over from F6 to F10, follow these steps:
The user change symbol, which is a blue triangle, will appear in the right-most column to indicate a user binding.
The Binding for Step Over appear as F10. When you use debugger, press the F10key for a Step Over. In the context menu that appears on the Debugger window, you see Step Over F10.
The Preferences dialog box closes.
The default key bindings changes, as specified.