You can submit your games for analysis when they're over. Otherwise contact the staff directly via Help & Support at the bottom of the page with your suggestion.
For now I suggest downloading free chess programs such as Arena or Windboard and installing free engines such as Houdini, Firebird, Stockfish etc. in order to analyze your games with.
I like to engine anylize blitz and bullet games to see tactics i may have missed. I would really like to have an engine during analysis mode for post game quick review of obvious missed chances