Humble Merchant starting-guide (Page 7 of 8)
Written by KongRudiInstalling the weapon in your laser-bay
Click on the top left of the four weapon slots in the discoverer, and select like below.
After the laser is installed, you're able to shoot with right mousebutton.
(Toggle on Semi-automatic aim asstance with K-key. You can toggle on full aim assistance later aswell, but you'll need some Fight Command software installed in your ship for that, however at the moment you do not have enough race relations to buy that.)
You do however got all you need to do the Flight school mission.. :)
However, it would be smart to fly past the stations in the sectors before you headed north to Herron's Nebula again.
And perhaps check abit out in the ingame encyclopedia, about all the stuff you've noticed in the Argon equipment dock.