There should be a little button in the hangar near customization that throws you in to a completely blank world with no intense textures so you can test out builds and ships. It should have a line of stationary and moving objects that have set values for health such as 1,000-10,000-100,000-1,000,000 health etc. There should also be shielded structures to test out shield sucking weapons/modules and shield bypassing things.
All structures should be treated like ships in the sense that all items and weapons and effects can be placed on them. Pyro should work. Command shield sucker should work. Damage auras should work. Everything.