Yes, there is a setting for that. It can be accessed by opening the regular NetWorx Settings window and then pressing Ctrl+O (that's letter "O", not zero) while that window is open and active. This will open the Hidden Settings dialog where you can fine-tune NetWorx further.
The setting you need to change is called
Display format. It can have values 0, 1, 2, or 3. They set the speed units as follows:
- 0 for automatic
- 1 for kilobits/kilobytes
- 2 for megabits/megabytes
- 3 for gigabits/gigabytes
Update: in version 7.1.1 this option became available in the ordinary
Settings -
Main tab -
Speed setting.