Talk:Tutorial: FAQ/@comment-24059551-20131018030756/@comment-75.82.70.23-20131018031054

To remodel ships, after reaching the required level, go to the Modernization screen (the gear button), select the ship, and click the green button on the right that is usually greyed out. This requires some resources, and I think it also repairs the ship to full and the ship must not be in the dock to be remodeled.

Yep, the HQ level is the level at the top of your screen while in base. Some people also call it the commander level.