Power query Merge and access column of table

Hi, if I have merge tables as new and then rather than the entire table I only want particular column / s , is there a way ?

so if if start with

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i could then ;

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but is there another way, I've included a couple of different approaches, to show what I was aiming for ,

Queries 'salesitem' salescustomer,

just interested to see if I can get at table columns withing merge. I have a couple of other questions but one at a time.

Richard.

Thanks, at least I can stop trying to do what can't be done.