Logging data series to base

Hello,

I would like to create some plots in Altair Activate. For this I need to get the simulation results to the base. Using the 'to base'-block I only get one value. I want to save all values of a signalflow in a vector.

My approach is to use an external activation for the 'to base'-block but still there is not vector created.

How can I do that?

Best regards

Nils