Need help in Power BI Matrix Visualization hierarchy to ignore at second level.

[srbhdix]

Hello PBI Experts, 

We need some help in achieving below output table in power bi matrix visualization. We have also mentioned the input table below. Request you all experts, if you have any workaround then please feel free to reply on this mail or connect with me to help us on this requirement.  

Note:  We have tried matrix visualization in power bi and we have noticed that when we add the first column in rows it group by 1st category and then when we add second column by default it does group by on 2nd category however the requirement here is to not to group by on 2nd category and show all the rows associated to that categories. If we turned off the stepped layout on row headers, then the second category comes in columns but that's not meeting the requirement.

Output: 

Meeting Invitee & Subject	Meeting-Start Time	Meeting-EndTime	Meeting Category
Abc@test.com
testsub1	1/1/2020 7:30	1/1/2020 8:00	Cat1
testsub2	1/12/2022 13:00	1/12/2022 13:30	Cat2
testsub3	8/8/2022 2:00	8/8/2022 2:30	Cat3
testsub4	8/8/2022 3:00	8/8/2022 3:30	Cat1
testsub5	8/9/2022 3:00	8/9/2022 3:30	Cat2
DEF@test.com
testsub10	8/14/2022 2:00	8/14/2022 2:30	Cat1
testsub6	8/10/2022 3:00	8/10/2022 3:30	Cat3
testsub7	8/11/2022 2:00	8/11/2022 2:30	Cat1
testsub8	8/11/2022 3:00	8/11/2022 3:30	Cat2
testsub9	8/13/2022 2:00	8/13/2022 2:30	Cat3
GHI@Test.com
testsub11	8/15/2022 2:00	8/15/2022 2:30	Cat2
testsub12	8/16/2022 2:00	8/16/2022 2:30	Cat3
testsub13	8/17/2022 2:00	8/17/2022 2:30	Cat1
testsub14	8/17/2022 3:00	8/17/2022 3:30	Cat2
testsub15	8/18/2022 2:00	8/18/2022 2:30	Cat3
testsub16	8/19/2022 2:00	8/19/2022 2:30	Cat1
testsub17	8/19/2022 3:00	8/19/2022 3:30	Cat2
GHI2@Test.com
testsub16	8/19/2022 3:00	8/19/2022 3:30	Cat2
testsub16	8/19/2022 2:00	8/19/2022 2:30	Cat1

Input table:

[lbendlin]

Please provide sample data that covers your issue or question completely, in a usable format (not as a screenshot).
https://community.powerbi.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-Forum/ba-...