Forum user @Z-Key Aerospace turned this mod over to me, original thread is here: https://forum.kerbalspaceprogram.com/index.php?/topic/139223-ksp-v145-tac-fuel-balancer-v220/ TAC Fuel Balancer Easily refuel from space stations. Keep your spaceplane or VTOL balanced. Dump spare fuel before re-entry. Lock and unlock tanks This mod can transfer fuel, or other resources, between parts on the same vessel (including docked vehicles) from a simple GUI. New