So I'm assuming from the videos that you want the actors to walk around the dock to that destination in the image?
If that's the case, you need to space your actors out a little otherwise they'll continually bump into one another and it'll look awful. Also, you need to have them walk to the corner of the dock first, then walk out of through the gate. There are a couple of ways to do this:
1. Time it in your script so the actors change direction when they reach the corner. This can be tricky and very hit and miss.
2. Use an 'if' check to have your players automatically change direction when they reach the corner.
'if actor XXXX?? at point X! Y! Z! set_actor XXXX?? walk to A! B! C!'
Check for that kind of opcode (I can't remember the exact opcode off the top of my head) in the opcodes list and try using that. You'll just need the two sets of co-ords, one for the point at which you want your actors to turn, and another for their final destination.