yesterday before I sleep I had the good idea to leave defraggler defragmenting my hard drives and partitions while I am sleeping (defragmenting can take some hours if the data is very fragmented "in my case") but unfortunately defraggler only can defrag one partition at a time and then you will need to select manually other partition to defrag, I was very surprised of that very rare limitation, would be perfect if you can improve defraggler and add a batch processor in the next version, also you can add some check boxes and select which partitions you want to defrag, so then when it finalize to defragmenting partition C and then it will automatically start to defragmenting the next drive or partition.
sorry for my bad english, I'm just making miracles writing this improve request xDDD.