Connect more than one query in Dataflow Gen2 to the same lakehouse with multi-select

[dan7]

Instead of adding queries one by one into a specific Lakehouse as "Data destination", allow user to multi-select multiple queries at once and go through the "connect to data destination" wizard process a single time.

[Joshua_Rodgers]

This is really needed. Adding or modifying dataflows with many output tables takes an insane amount of time.