Question: Adding capital ship levels

Hey all - another quick question.

Trying to raise the max experience level of a capital ship from 10 to 20. The only sort of cap I see is in gameplay.entity; I modded it as follows:

...

ExperienceLevelData:9
  ExperienceNeededForNextLevel 9800.0
  ExperienceGainedForDestroying 580.0
  UpgradePriceForNextLevel 3200.0
  ExperienceLevelData:10
  ExperienceNeededForNextLevel 9800.0
  ExperienceGainedForDestroying 580.0
  UpgradePriceForNextLevel 0.0
  LevelUpEffectName "CapitalShip_LevelUp"
  LevelUpEffectSoundID "CAPITALSHIP_LEVELUP"
  PurchaseNextLevelTime 90
 cultureData
  minPropagatedCultureRate 0.005
  culturePropagationPerc .5

...

Developer exe promptly warns me on startup:

Text FileArchive missing Label.

File: C:\Users\Administrator\AppData\Local\Ironclad Games\Sins of a Solar Empire\Mods-Entrenchment v1.01\Mother of All Sins a2.0\GameInfo\Gameplay.constants
Label: LevelUpEffectName
Line Number:93
Line Contents: ExperienceLevelData:10

It's usually possible to fix errors like that by changing the entry count at the top of a list, but there is no count here; it just says CapitalShipData at the top. I'm confused!

Thanks in advance for your help.