None. You must have misunderstood something.
yes
Go to the Command prompt and run "help" command to see the command list..
Command-S
go to practice and then go to the command list once you choose the character of your choice
The command key on Mac is equivalent to the control key on windows. However, there are some programs that use the control and not the command key.
there is no list persay but help in the consel (press ~ key) should give you commands but for a list of commands and what they do just google css consel commands
The same command on a mac would be command key(cmd)+A any ctrl key command is the same as the cmd key on a mac
You can easily cycle through previously entered commands by pressing the Up key.
The nearest equivalent Meta key to a Mac's Command key on a Windows PC would be the Windows key although many of the Commands that use the Control key (on Windows) are performed with the Command key on the Mac.
b
The "esc" key often does this.
A Key Into the Language of America was created in 1643.