robotic_arm.fsmI want to delete queue 3 and make the robotic arm hang with the box until the forklift comes and then the robotic arm continuously picks up the boxes and fills the forklift until it reaches 4 boxes. Moreover, I want the robotic arm to fill the forklift with 4 boxes before the forklift leaves. So the first box would be immediately loaded. The other boxes make the forklift wait until it is finished.