About Mapkeys
A mapkey is a string of alphanumeric characters used as a shortcut to start tools or commands. Mapkeys are unique and must not consist of other mapkey sequences, as shown below:
A valid mapkey set: nd, no, hell, help
An invalid mapkey set: h, hi, hello, no, nod
* 
Mapkey functions may not always be available. For example, when a prompt to input text appears.