This is how you use draft post.

Just the same making a new thread or post

1. input the title
2. Type your thread or post
3. Click the "save as draft post" button
4. Click the submit button.

To load your saved post you can click the button that says post with draft post and select the draft post you want you.

Re-input the title and edit away you can re save as draft post if you want or post it.

See video below (will be added once uploaded)

[video=youtube;lsI8_cOZ9Ak]https://www.youtube.com/watch?v=lsI8_cOZ9Ak&feature=youtu.be[/video]

You can also delete any Draft Posts you have by clicking on the settings tab up the top

Then scroll down and you will find Draft post settings on the left pane click Drafts

Any you want to delete just tick the box and then click submit.

[video=youtube;0YGCy29ObSk]https://www.youtube.com/watch?v=0YGCy29ObSk&feature=youtu.be[/video]