BAU Standup KanBan Cleaner

ColBan.js

// column IDs
var inbox = 240,
    pri = 21,
    signoff = 23,
    done = 28,
    show_top_n_issues = 3;

var to_hide = [inbox, signoff, done];

// hide columns and their titles
$.each(
    to_hide,
    function(i, id){
        $('[data-id="' + id + '"],[data-column-id="' + id + '"]').hide(0);
    }
)

// hide issues[:3] on a per swim lane basis
$('[data-column-id="' + pri + '"]')
    .each(function(){
        $(this)
           .find('.ghx-issue:gt(' + (show_top_n_issues-1) + ')')
           .hide(0);
    }
)

See http://fiddle.jshell.net/tomviner/zrFGn/show/light/ for bookmarklet with dragable link