Set text to the corner of the grid

Hello, how can I put text in the corner of the grid?

What you mean? Can u explain a little more?

To write some text and set an event for top-left corner in version 1.X, just try :
//text of top left corner
obj.getLayoutTemplate().setContent("corner/box/item", "Click Me"); 
//EVENT of top left corner
var Mycorner = obj.getLayoutTemplate().getContent("corner"); 
Mycorner.setEvent("onmousedown", mousedownFunction);
function mousedownFunction(e) {alert('Corner Clicked'); } 
  For do it in version 2.X use:
obj.setTopText("Click Me");  HTH