8 6 6 Collapse and expand code

Action	Key to use
Collapse blocks. This command blocks a level at a time. If you keep collapsing the blocks, the entire code will be collapsed, except for lines that are not in blocks.	Ctrl + F9
Expand blocks. This command expands a level at the time	Ctrl +F10
Collapse the block containing the line that has the editor focus	Ctrl + Shift + F9
Expand the collapsed block that has the editor focus	Ctrl + Shift + F10