I understand now (after having used Flux for a while) that from the table above it cannot be deduced how to fix the problem.
In short the issue can be summed like this:
if we have two separated (like shown above) tables, one with columns A, B, C and the other with A, B, D. Note that each matching column name has the same column type too.
The question is: can we have a single table, 'A, B, C, D? By a single table I mean without separations like on the photo I shared. This single table can still have the table` column and show multiple tables.