All game options are saved and restored. Maximal visibility increased for small sceneries. Tide is advanced also using the Q, W keys.
Frame rates increase when stars, caostics, glare are turned off.
If you have version 3.5 download also this file, put inside the Virtual Sailor directory and run it. 5.0 Realistic sun glare. Stormy sea and weather effects. Realistic boat wakes. Underwater lighting and caostics.