Typeblocking

Typeblocking is a feature  that allow user to get the Block code appear without go to the blocks list.
just type the keyword and then series of block code will appears, just select it.

this Information users will get through link below
http://appinventor.mit.edu/explore/tips/typeblocking.html

Watch the following gif for an example of using typeblocking to make a list using the make a list block.