With the latest SCCM Current Branch update, end-user can now install multiple applications at once from the Software Center.

To do so, just ensure you have deployed the latest SCCM client (5.00.8634.1007) and launch the Software Center.

Then just enable the multi-select mode, check the box before all the applications you want to install and finally hit Install selected

imageimageimage

NOTE if the Software Center is showing the applications in Tile view, enabling the multi-select mode will automatically switch the view to List