Hi
I do have the following problem:
I have a dataset, which will be prepared in the following way:
| RowID | MB | MD | MN |
| 2 | |1|1|1|1|2| | |3|5|6|7|9| | |4|5|6|2|4| |
| .. | .. | .. | .. |
| .. | | | |
Next Step is Split to Column for each colum:

But sometimes the dataset contains a fourth column MP, but not always.
How can I join them after Split to column, even if the MP column is missing?
Multiple Join is based on RowID