Custom debugger conflicts with ConsolePad

We're building an addin with a custom debugger (which works fine).

Now the problem is that the built-in debugger UI (ConsolePad in particular) assumes that the current debugger is always a WindowsDebugger. This is not the case for us and therefore the constructor of ConsolePad throws an exception because it contains a hard cast to Windows debugger.

What can I do to replace the built-in debugger pads to support our own debugger?

Or better, any chance the built-in pads can be fixed to support non-WindowsDebugger instances.

PS. We're currently on SD5, but 4.3 is also an option.