People often click on inbox for going to inbox, click on Sent Mail for seeing their sent mails and so on. So if you wanna to access inbox, sent mails, drafts directly with shortcuts then type ? anywhere in Gmail tab. A pop up window will appear with all keyboard shortcuts. I have given a screen shot which is not exactly visible but you will see something like that when you will press ? .
Keyboard shortcuts like:
- g then i : Go to Inbox
- g then t : Go to Sent Messages and so on.
Thank you for your comment.