Hi there, First time poster, long-time KSP lover. I've just been trying out 0.24. I took on the Kerbin rescue mission contract, where there is a Kerbal stuck in orbit. I got an unmanned ship with a Mk1 command module for Jonson's ride home. Upon rendezvous, I couldn't get Jonson to climb aboard. How do you actually get him on board to complete the mission? Thanks!