Documentation group create
According to the documentation, group create simply creates a group and will accept the group name as long as it is not blank. However, the actual behaviour of WGT does not allow for spaces, group name must be alpha numeric.
The documentation should mention that spaces are not allowed for group names.

Additional suggested improvement
It might be better to mention that white spaces are not allowed in the error message as well.
Documentation
group createAccording to the documentation, group create simply creates a group and will accept the group name as long as it is not blank. However, the actual behaviour of WGT does not allow for spaces, group name must be alpha numeric.
The documentation should mention that spaces are not allowed for group names.
Additional suggested improvement
It might be better to mention that white spaces are not allowed in the error message as well.