Vessels

• Vessels with preset models are now toggleable.
• Vessel: Waterline to deck parameter now controls the WaterCube height.

Units

• New units dragged into the viewport should now stack onto decks and other units and not default to 0 vertical placement.
• Move up/down actions for units now stack to the next incremental height, for better user experience.

Bugs/Tweaks

• Focus Vessel button were broken - it should now work.
• Fixed a bug where cranes would reset their rotation when moved.