If you just installed the addon, you would want to open up each of these things once in-game on each character:
- bank
- void storage (if you keep gear there that you care about)
- artifact UI (where you spend artifact power to buy traits)
- netherlight crucible UI (at the forge thing in the ship)
- at the netherlight crucible, preview any relics in your inventory that you might want to use
For Pawn, check out our Pawn guide: Pawn Addon Guide