commented previous example and add 3 patterns of col number inside of dropdown box

src/client/js/components/PageEditor/GridEditModal.jsx

@@ -71,9 +71,22 @@ export default class GridEditModal extends React.PureComponent {
                   </button>
                   <div className="dropdown-menu" aria-labelledby="dropdownMenuButton">
                     {/* TODO GW-3136 implement inside dropdown menu */}
-                    <a className="dropdown-item" href="#">6:6</a>
+                    {/* <a className="dropdown-item" href="#">6:6</a>
                     <a className="dropdown-item" href="#">4:8</a>
-                    <a className="dropdown-item" href="#">8:4</a>
+                    <a className="dropdown-item" href="#">8:4</a> */}
+                    <div className="container">
+                      <div className="row">
+                        <div className="col">
+                          1 of 3
+                        </div>
+                        <div className="col">
+                          2 of 3
+                        </div>
+                        <div className="col">
+                          3 of 3
+                        </div>
+                      </div>
+                    </div>
                   </div>
                 </div>
               </div>