How to enable internal load and sling load at the same time?

[Handsome1080P]

How to enable internal load and sling load at the same time?If I modified this judge lines and only enable sling load,its correctly?

Origin:if ctld.hoverPickup == false then
if ctld.slingLoad == false then
missionCommands.addCommandForGroup(_groupId, "Load Nearby Crate", _crateCommands, ctld.loadNearbyCrate, _unitName )
end
end

Modified:if ctld.hoverPickup == false then
missionCommands.addCommandForGroup(_groupId, "Load Nearby Crate", _crateCommands, ctld.loadNearbyCrate, _unitName )
end
end