how do i transfer fuel between tanks?

[Findthepin1]

i had a docked lander+tug in lko. the docking ports are the 2.5 meter ones. it came back from minmus using the tug, which was orbiting minmus. when i undocked the lander in lko to land it on kerbin, its fuel tanks were empty because the tug had used its fuel. is there a way to counteract this? also, is there a way to transfer fuel between docked ships? i had to send another lander to rescue the kerbals. it was a lot of wasted time for me. thx

[Starhawk]

Right click on the first tank, then hold the modifier key (alt in windows) while right clicking the second tank. The rest should be self-explanatory.

Happy landings!

Also, welcome to the forums!

[Findthepin1]

thx it works

[Pecan]

Docking ports, as you've discovered, allow fuel-crossfeed. To prevent that you have to right-click the port and 'disable crossfeed' every time you launch or dock.

[Claw]

Welcome to the forums!

If you have any other questions, feel free to post them in the Questions forum. You'll probably get more and faster responses in there. Although looks like you got some pretty good answers above.

Cheers,

~Claw

[KAL 9000]

What's the modifier key for Macs? I'm not sure

[Starhawk]

Apparently it's the 'Option' key.

Happy landings!

[Wolf Baginski]

Check the Wiki, there's a list of keys for everything.

http://wiki.kerbalspaceprogram.com/wiki/Key_bindings

That's the English version