In the Schematic: **Right-click > Find Similar Objects...** Set the relevant **Component Properties** selection criterion to **Same** Click **Find** then edit the relevant attributes that need to be changed in the right hand panel or right-click on the canvas and select **Properties** and edit there. When you edit the Footprint, the **Footprint Manager** will open to help you select and update the footprint. For help on the **Footprint Manager**, see the Tutorial.

Unfortunately in Std, there is no way to directly select and replace parts just by a simple: select old > select new > replace old with new process. This process does exist in Pro.