A common request is a 'wait' block to cause a delay in the app.
What is usually recommended is a Clock Timer event block to delay for the amount of time required.
The attached snippet attempts to simplify this by eliminating the Timer event block and the global variables usually required.
It uses an existing Clock instance in the app.
Upon cursory examination it appears to work as the delay happens as expected.
However, the blocks before the delay procedure will not execute as explained by Taifun's analysis in this thread.
So follow his recommendations in this thread which use a Clock Timer event block.