How to show multiple values of one dimension under the same column in a bar chart in SAC?

Hello,

I am trying to build a bar chart to show the evolution in time of Measure 1, and show a 2nd Dimension (besides the date dimension) that occurs only from time to time. So on the OX ax I have the date (Dimension 1) plus the values occurred on the respective date for Dimension 2.

If you look at the red frame, for Oct 3 I have 2 values of Dimension 2 and the column for Oct 2 is duplicated. Is there any way to display the 2 values one under the other, both under the same column (see second picture).

Thank you very much!

Gina