Hello,
Changing plugs without rocking the engine forward is simple if you are familiar with doing so. The first couple of times I rocked the engine, now I feel rocking the engine just wastes precious time. You can unload the bolts from the dog bones, and pull on the alternator to rock the engine. As Herc said, there is a secondary hole in the engine bracket that holds the coil packs to stick the bolt back into and hold the engine in the forward position.
Taking the boots off of the plugs can be a chore in itself. be sure to get them loose by twisting them before pulling on them. Also, be prepared to change the wires if you you have over 50K, and have never changed the plugs. The connectors have a tendancy of staying on the plug.... Not always, just giving fair warning.
Later now,
Clint