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Editing: keyhandler.js

// global var that holds: 0- if ctrl key is not pressed 1- if ctrl key is pressed
var ctrlKeyHistory = 0;

/**
  * Allows moving around inputs/select by Ctrl+arrows
  *
  * @param {object} event data
  */
function onKeyDownArrowsHandler (event) {
    var e = event || window.event;

if (e.type === 'keyup') {
        if (e.which === 17) {
            ctrlKeyHistory = 0;
        }
        return;
    } else if (e.type === 'keydown') {
        if (e.which === 17) {
            ctrlKeyHistory = 1;
        }
    }

if (ctrlKeyHistory !== 1) {
        return;
    }

e.preventDefault();

var pos = o.id.split('_');
    if (pos[0] !== 'field' || typeof pos[2] === 'undefined') {
        return;
    }

var x = pos[2];
    var y = pos[1];

switch (e.keyCode) {
    case 38:
        // up
        y--;
        break;
    case 40:
        // down
        y++;
        break;
    case 37:
        // left
        x--;
        break;
    case 39:
        // right
        x++;
        break;
    default:
        return;
    }

var id = 'field_' + y + '_' + x;

var nO = document.getElementById(id);
    if (! nO) {
        id = 'field_' + y + '_' + x + '_0';
        nO = document.getElementById(id);
    }

// skip non existent fields
    if (! nO) {
        return;
    }

nO.focus();

if (nO.tagName !== 'SELECT') {
        nO.select();
    }
    e.returnValue = false;
}

AJAX.registerTeardown('keyhandler.js', function () {
    $(document).off('keydown keyup', '#table_columns');
    $(document).off('keydown keyup', 'table.insertRowTable');
});

AJAX.registerOnload('keyhandler.js', function () {
    $(document).on('keydown keyup', '#table_columns', function (event) {
        onKeyDownArrowsHandler(event.originalEvent);
    });
    $(document).on('keydown keyup', 'table.insertRowTable', function (event) {
        onKeyDownArrowsHandler(event.originalEvent);
    });
});

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