KB41504: How to apply "Total" to some specific page-by attributes independently and keep other page-by attributes never have "Total" option in MicroStrategy Developer 10.x

In some business scenarios, it is required to apply 'Total' to some specific page-by attributes independently and keep other page-by attributes never have 'Total' option.
To give an example using Tutorial, there are three attributes , and in page-by. The requirement is to be able to select 'Total' option for both and independently, but never apply 'Total' to , as shown below:

NOTE: If Advanced Subtotals are set across levels and , as shown below:

 
The attribute in page-by would display 'Total' as the only option when any of the other page-bys is selected as 'Total', which is NOT expected, as shown below:

For the steps below to achieve the requirement:

• In Strategy Developer, create a report with attributes , , and in page-by; and metric in column.
• Go to Menu -> Data -> Subtotals.
• Click on 'Advanced' under 'Definition' tab and open 'Advanced Subtotals Options' window.
• Select 'Group by' option for 'Applied levels', and click on Add.
• Add all possible combinations among attribute levels that include attribute(s) that is/are never expected to have 'Total' option, except the selection of all the attribute levels. Some examples about this will be discussed later. For the requirement in this example, add three Group By levels, as shown below:
  

•  
  After adding these selections, the group by setting is as shown below:
  

• Click on OK to apply the change. And the attributes in page-by of the report can display as expected.

 
NOTE: 
About the content that "all possible combinations among attribute levels that include attribute(s) that is/are never expected to have 'Total' option, except the selection of all the attribute levels" in step 5, here are two more complicated examples, as shown below:
 
Example 1 - Four attributes A, B, C, and D in page-by, while C and D are NEVER expected to have 'Total' option.
Group by levels needed:
(C, D)
(C, D), A
(C, D), B
 
Example 2 - Four attributes A, B, C, and D in page-by, while D is NEVER expected to have 'Total' option.
Group by levels needed:
(D)
(D), A
(D), B
(D), C
(D), A, B
(D), A, C
(D), B, C