Compass points you at your bay but its in two dimensions so if you go onto a Pad and its in the Hanger you can get confused as it is below you
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I do a couple of things
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Request Docking permission and then lock onto your ship from contacts - its easier to follow the ship marker and compass than just the compass alone to find your pad
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Check other pads they are number sensibly if you can see pad 1 and pad 3 numbered and you want pad 4 it isn't between 1 and 3!
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Find the correct pad - use your compass- then you should find an entrance and an exit ramp Don't go up the ramp, look around the entrance ramp and you should see a small Garage - drive in and look for the "board ship" light