After starting the MiniTool Partition Wizard, you can select the partition you want to change directly from the Disk/Partition List.
Note: MiniTool Partition Wizard does not support volume sets and dynamic disks. The current edition only supports basic disks of MBR-style and GPT style.
Note 2: MiniTool Partition Wizard does not support removable disks. But it can be well supportable to USB or other external disks of different interfaces.