The boxes in this column start off “checked”. This indicates the ship-design is “active” and will be listed on the production menu. If this box is unchecked the ship design will no longer show up as a production option. Unchecking this box will not, however, remove any ships from an existing queue. Being able to remove obsolete ships as a production option can prevent things from becoming cluttered due to an excess of production options.
Filter by Name contains specific text: Let’s say all of your colony ship designs hold a specific code such as “Col”. If you filter for that string of characters only those ships will be shown (along with any other ship designs that happen to have “Col” anywhere in their name)
This column displays the base units and total effective hitpoints of your ship designs. The effective hitpoints are the ship’s units increased by its shield strength. A ship with 100 units and a shield strength of 50% ends up having 150 hitpoints. This means that a ship requires 150 firepower to destroy this ship in a single turn.
Hitpoints are listed first and the base units (units before shields) are listed second in parentheses.
This column displays the modules (if any) on your ship designs. If you hover the mouse pointer over the module it will give you information about the purpose of the module and any special conditions that may apply.
Filter by Modules: Allows you to show/hide ship-designs equipped with specific modules. For instance it is possible to only show ship designs that are equipped with either a Colony Module or a Extra Pilot Cabin.
This column displays whether this ship is cloaked or not. A cloaked ship has the advantage of reducing the effective scanner range against it by 60%. It does not reduce effective scanner range for other ships either in the same location or in the same fleet.
This scanner dampening may be further amplified by researching certain Doctrines.
This column shows how many of this ship design are currently in production. If a plus sign is displayed next to the number this indicates that the ship is in a queue but not currently in production, and/or mentioned in a governors/admirals rule set.
Additionally if you hover the mouse-pointer over it a tooltip will come up that shows which planets are currently producing the ship design or have it in their queue, which shared production queues have it listed, and/or which governors/admiral have it mentioned in their rule set.