Not too hard. Most people use a bump or pull method. Pull with the main and un map the forward move button on the main and walk the rest forward or 'bump them up'. You could pull with the main and do the opposite. take a step or two back and stack on the rest. Or use a ranged attack with one of the followers then all you have to do is turn the main around. Or oldfasioned EQ style of pulling. Park the 4 followers and just pull things to them. I saw one guy had key bound a straif and /follow that made his followers do a face center cirlce dance around the main toon and just did that to move them into position.