Avoid chasing ships, it's tough to dodge their fire. When you run out, your weapons won't fire, you can't go very fast to run away, and you'll be helpless. If you run out of fuel, go orbit a friendly or neutral fuel planet. Avoid chasing ships, unless you know they are badly damaged or out of fuel. It's very hard for you to dodge their fire, and very easy for them to dodge yours.
Any player can now ignore any other player.
When that player quits you will stop ignoring that slot. This brings up the options window. Near the bottom there is a box for 'New keymap entries'. Move your cursor to this box and type your new keymap entries. The format is , so 'tT' will remap tractor beam to 't'.