Other than in view editing a Notes View in the Notes Client allows only double click of the whole row to fire events assocated with opening a document, ie. queryopen, postopen.
It would be a major improvement to allow not only the opening of documents but separate 'onclick' events for each individual column thus providing programming options based on the data in the column or document in the row, ie in line with any modern web data table, - e.g open a doc, open a URL, pop up a box, navigate elswhere, perform xyz etc. etc. depending on which column is clicked and the data in that 'cell'
Although not based on column events the new row based hover over icons in the Mail Inbox of Notes 11 is one example.