Go to
Cols=>Column Manager
Click on the Property Down Arrow and select Spec Limits

Select all displayed columns
Select first displayed column and then scroll down to the bottom of the list and then press the shift key and click on the last displayed column

Now return to the original data table. All of the columns with Spec Limits are now selected.
Select
Cols=>Group Columns
or go to the red triangle in the Columns Panel and select

The columns will now be grouped

To change the name to myGroup, double click on the default name

Type in the name myGroup and press the enter key

Other Community Members may have other methods
Jim