We currently don't have an option for this but you can set this up manually. The steps are:
In the grid's FOEX Config dialog set "Hide Pagination to "Yes" e.g.
Add a FOEX layout region and set your grid as a child region
Create a toolbar region as a child region and set the "Position" in the settings to "Bottom"
Add a Button and FOEX Display Item to the toolbar. For the button label set it to "->" and make sure the display sequence is lower than the page item. This will right align the page item.
var store = (this.data && this.data.store);
return (store) ? store.count() + ' of ' + store.getTotalCount() : '';
Here is how it should look: