Merge Queries wizard; Enhanced to allow horizontal merging based on differing field names between the source queries

The Merge Queries wizard has been enhanced to allow horizontal merging based on differing field names between the source queries.

Previously, the link column between the queries (Join on Field) had to be the same in each query. Now, you can choose to specify a different field name between Query 1 and Query 2, e.g., Pk and AccountPk.