Add ability to place multiple tiles into work area at once

[mibeh]

Please add the ability to place multiple tiles in the work area at once that have been multi-selected in the Tile store view. This would greatly enhance user efficiency because there are instances where it is obvious that several sequential tiles fit together in the Tile store but it is very time consuming to place them in the work area one by one. Preferably, this could be accomplished by drag and drop or right-clicking.