I need to modify this patch to modify button function of the dialog... any help???:

patch(SaleOrderLineProductField.prototype, 'sale_product_matrix', {


    /**
     * Triggers Matrix Dialog opening
     *
     * @param {String} jsonInfo matrix dialog content
     * @param {integer} productTemplateId product.template id
     * @param {editedCellAttributes} list of product.template.attribute.value ids
     *  used to focus on the matrix cell representing the edited line.
     *
     * @private
    */
     _openMatrixConfigurator: function (jsonInfo, productTemplateId, editedCellAttributes) {
        const infos = JSON.parse(jsonInfo);
        const saleOrderRecord = this.props.record.model.root;
        const MatrixDialog = new Dialog(this, {
            title: this.env._t('Choose Product Variants'),
            size: 'extra-large', // adapt size depending on matrix size?
            $content: $(qweb.render(
                'product_matrix.matrix', {
                    header: infos.header,
                    rows: infos.matrix,
                    format({price, currency_id}) {
                        if (!price) { return ""; }
                        const sign = price < 0 ? '-' : '+';
                        const formatted = formatMonetary(
                            Math.abs(price),
                            {
                                currencyId: currency_id,
                            },
                        );
                        return markup(`${sign} ${formatted}`);
                    }
                }
            )),
            buttons: [
                {text: this.env._t('Confirm'), classes: 'btn-primary', close: true, click: function (result) {
                    const $inputs = this.$('.o_matrix_input');
                    var matrixChanges = [];
                    _.each($inputs, function (matrixInput) {
                        if (matrixInput.value && matrixInput.value !== matrixInput.attributes.value.nodeValue) {
                            matrixChanges.push({
                                qty: parseFloat(matrixInput.value),
                                ptav_ids: matrixInput.attributes.ptav_ids.nodeValue.split(",").map(function (id) {
                                      return parseInt(id);
                                }),
                            });
                        }
                    });
                    if (matrixChanges.length > 0) {
                        // NB: server also removes current line opening the matrix
                        saleOrderRecord.update({
                            grid: JSON.stringify({changes: matrixChanges, product_template_id: productTemplateId}),
                            grid_update: true // to say that the changes to grid have to be applied to the SO.
                        });
                    }
                }},
                {text: this.env._t('Close'), close: true},
            ],
        }).open();

        MatrixDialog.opened(function () {
            MatrixDialog.$content.closest('.o_dialog_container').removeClass('d-none');
            if (editedCellAttributes.length > 0) {
                const str = editedCellAttributes.toString();
                MatrixDialog.$content.find('.o_matrix_input').filter((k, v) => v.attributes.ptav_ids.nodeValue === str)[0].focus();
            } else {
                MatrixDialog.$content.find('.o_matrix_input:first()').focus();
            }
        });
    },
});

​