Help! Can I change this?

[Tar&Feather]

First watch spotted an aircraft and a box came up asking if I wanted to Maintain current orders, Dive to periscope depth or engage. I ticked engage aircraft and also ticked the 'Always do this box'.

However I now realise this was not what I wanted I want to dive when aircraft are spotted but now. Can I change this?

My U-boat always engages now, not what I want at all!