Enable hierarchy for columns

Hello,
 
We have a feature request regarding hierarchy for columns.
 
Currently, rows support multi-level hierarchies. There are some downsides to this but in general it fits our purposes.
 
However, there is no similar solution to columns. Sometimes this leads to our customers encountering very frustrating scenarios where child-columns are "cross-populated" across parents.
 
In a specific case we had a customer planning across the latter half of 2023 and the first half of 2024. I don't have a JSFiddle ready so I will just explain it:
 

2023
 
 
 
 
 
 
2024
 
 
 
 
 

6
7
8
9
10
11
12
1
2
3
4
5
6

Consider the schema above. This is what the user enters as column data.
 
And this is the FlexMonster output
 

2023
 
 
 
 
 
 
 
 
 
 
 
2024
 
 
 
 
 
 
 
 
 
 
 

1
2
3
4
5
6
7
8
9
10
11
12
1
2
3
4
5
6
7
8
9
10
11
12

 
Essentially the hierarchy is completely ignored and the colums cross-populate.
 
This is problematic in a large number of use-cases. There are workarounds such as specifying "0" values instead of null for all data points and then hiding all empty values (as the generated dimensions will have no data). Still, it is not ideal. It leads to a relatively large degree of frustration with customers who do not understand why their data is not being "respected".
 
We kindly request a feature to enforce hierarchy on columns or "disabling" this cross-population as it has a very high negative impact on the customer experience.
 
Best regards,
Jonas