Touch a snap point of the block you want to delete. The selected block
will turn red.  

If you have a design with multiple blocks, use the zoom feature to
enlarge the image so that you can select the block you want to delete
more easily.

If you have selected the wrong block, touch it again to remove it
from the selection. You can select multiple blocks.

<b>Select All
Touch this button to select all the blocks.

Touch [Continue] when you've made your selection.

A window will open asking if you are certain you've made the right
choice.
    Touch [Yes] and all the red blocks will disappear.
    Touch [No] and you'll return to the delete block screen.

