Unfortunately, I did not get this to work. The column is empty when displayed. I made a screen shot of my config, in case someone can see a silly mistake:
Here is the exact text in "Column types":
radio:<input type='radio' name='pick' value='[+id+]' /> [+name+]
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For what it’s worth, I did have some luck with this hack. But it’s pretty horrible, but it might work for the mail link...
@SELECT CONCAT(CONCAT("<input name=pick type=radio value=’", pl.id),"’ \>") as id, pl.is_shared, pl.name, wu.username FROM astk_portfolios pl, modx_web_users wu WHERE (pl.owner_id = wu.id) and (pl.is_shared);