I have an external HDD that still has over 500GB of un-allocated space.. I have 4 50Gb allocated by a former partition program but when I lost my internal HDD I lost the partition program and can not recall which one it was.. My question; Can I use IM-Magic Partition Resizer Pro as a substitute in tandem of the 4 allocated partitions that I’ve already have? I would like to also allocate the free space that I have into 50 and 100 GB partitions. Thanks.