You can use engineering attribute grouping to create groups to which you can assign engineering attributes.
Steps
Go to Product engineering > Setup > Engineering product type.
In the left pane, select the desired engineering product type.
In the Grouping section, click Add.
In the Group field, type a value.
In the Description field, type a value.
Click Save.
Note
You can now select this group when adding an attribute in the tab Attributes below.
Close the page.
Notes
If no grouping is defined and you add an engineering attribute, a default group is created and added to the engineering product type.