I have to agree most strongly that the current wall join is very week in complex situations. NNA has apparantly Given up on the Y Join tool as it isn't even in the Workspace editor as far as I can see.
I understand that the column command was created to alleviate this problem however while it works well for columns and Pipe chases or even intersecting different thickness walls it is too cumbersome for more typical join situations (Y or otherwise), since it is not easily reshapeable without editing group.
I also would like to know why sections of wall disappear when joined to columns if they are touching the column. Surely this is not a "feature".
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Bernard J. Doyle RA