If you are planning any more upgrades to your software, would you please consider having a separate action for the "Undo". By the time I am able to select it from the drop down menu, the next player has made a bid and I am no longer unable to correct a misclick. This has happened several times and last night it resulted in my partner being stuck in an opening 2 club bid because I inadvertently hit the pass instead of a responding bid. Although I attempted to "undo", it was disabled and by the time I typed, please allow an undo, all hands were passed and the contract was in play. It is a problem.