Eng:Switch Backdrop to () and Wait (block)

The Switch Backdrop to and Wait block is a Looks block and a Stack block, only accessible within the stage. It functions similarly to the Switch to Backdrop block, but this block waits for scripts under any When Backdrop Switches to  blocks to finish. This block is also similar to Broadcast and Wait, because they both fire a user-driven event to start an action.

Example Uses
switch backdrop to [scene2 v] and wait switch backdrop to [scene1 v] switch backdrop to [introduction v] and wait switch backdrop to [level1 v] and wait switch backdrop to [level2 v] and wait switch backdrop to [level3 v] and wait switch backdrop to [end game v]
 * Switching scenes temporarily
 * Switching between levels