Can you automatically fill a dataset based on another Dataset?

Is there a way to automatically fill a field in the same dataset (or a separate dataset) based on fields in a dataset?

i.e, after filling in the ‘title’ field in Dataset A, the same text will be put into the ‘title’ field in Dataset B.

The structure of the datasets is relatively similar to excel sheets, so I was wondering if there was a ‘formula’ of sorts that could do this?