Change displayed variable of a tile

By clicking on the edit button on any of the tile of the control, the user can trigger a configuration pop up. On this pop up the user can change the variable to be displayed on the selected tile.

- The tile number of the tile which is configured.
- Group can be selected as per configurated in the Variable Collection attribute.
- Symbol can be selected by selecting the descriptor text associated with the symbol.
- User can click on select or cancel buttons to confirm or cancel changes.