The f:table tag you are talking about comes from the fields plugin, as you correctly noticed. It is used to display some (or all) properties of the beans list (for example, domain classes) as a table.
You pointed to the documentation of the field plugin for Grails 2.x. The fields plugin was forked to make version for Grails 3.x. Check out the documentation here: http://grails3-plugins.imtqy.com/fields/snapshot/ref/Tags/table.html
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