You can edit units of measure in your account by changing the name.
To Edit a Unit of Measure:
1. Click the "Libraries" tab.
2. Click the "Unit of Measure Library" link.
3. In the library table, under the Unit of Measure column, type the "Unit of Measure" in the filter field for the unit of measure you wish to edit. Hit the "Enter" or "Tab" key on your keyboard.
4. Click the pencil icon (edit) for the unit of measure. This will take you to the "Edit" panel where you can type in the new unit of measure name.
5. Click the "Save" button.