Yea, the annoying thing is that you have undock all 4 clamps manually, until you are totally disconnected...Is it possible to assign an "action group" on docking ports?(haven't checked) But the good thing is that you save alot of time, instead of align, miss, re-align, curse, go make a cup of coffee, re-align again, miss, etc(could be my skills that sucks nuts) but of course, with the method SSSPutnik described with help of MechJeb, it's probably fairly easy with some practice to dock all 4 ports.