Appends a command to the command stack of an object. The appended command will be executed after the current other commands.
For command descriptions see
SetCommandNotice: commands set by AppendCommand are not transferred to controlled vehicles (see VehicleControl).
var base = FindBase();
SetCommand(this(), "MoveTo", base);
AppendCommand(this(), "Throw", 0, GetX(base), GetY(base));
Gives the clonk the command to go to the first found base and then throw the first carried object at the base.