Select the needed attributes and click Remove.
This command removes the attributes from the list; it does
not delete them.
Removing attributes affects any classes using these attribute groups.
An error message is shown that contains the number of items affected:
Removing these attributes from this attribute group will result in
permanent loss of the existing data for these attributes.
N items will be affected.
To continue with the removal, click OK. To cancel the removal, click
Cancel.
If no class objects are connected to the attribute group,
the following standard warning message will appear:
Are you sure you want to remove the selected attributes from this
attribute group?
[OK] [Cancel]
Click OK to confirm.