Power Query: Add Data to a Query

Hi,

I have a query in Power Query that is comprised of data from two Tables in an Excel workbook.

I would now like to add the data from another Table in the workbook to the query.

Can someone please tell me the broad steps that I need to do to achieve this? For example, do I import the 3rd Table into the PQ Editor in some way and then merge or append the new query to the original query?

Thanks!