IPython autocomplete in PyCharm launch window

Question

I code in PyCharm Community Edition and use the function IPython embedto debug my code. When I run the code, the code stops at the line I have embed, and the IPython interactive shell appears at the bottom of PyCharm in the "Run" window. I can check my variables and run commands, but all IPython autocomplete (like tabs) and up and down keys (to extract previous commands) no longer work. Does anyone know how to get this working from PyCharm?

Thanks.