Another way to get depth under keel quickly is to assign a shortcut for it. The easiest was to do that is to use the great SetKeys tool. Remember to check the box that says 'Carried out by Crew' if you use it.
Other functions where keyboard shortcuts come in handy:
- Weather report
- Standard propulsion/Recharge batteries
- Return to course
- Gramophome on/off
- Identify target/solution to target
- Battlestations (or man flak/deck gun)
- Target nearest warship/merchant/ship
etc...
Very helpful tool.