Yes. Use Table.setColumnExpandRatio (columnId, ratio) for this.
Say you have the properties "foo", "bar" and "baz" in your table. If you do this:
table.setColumnExpandRatio("foo",1); table.setColumnExpandRatio("bar",2); table.setColumnExpandRatio("baz",1);
you will get 25% for foo and baz and 50% for the bar
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