follower force

Can someone help me to simulate a beam subjected to non-conservative follower force , I have found a video on youtube about a beam subjected to a follower force but it was not clear , he started the explanation after he had created a beam with options like (RBE2...) , here you the video on youtube 
I tried many times to create that beam like the video but I was not abe. for example , when he applied the force, the beam already contains nodes and that cross on its top  !