Changing a topic to a sticky

I am new to this. How do you change a topic you made back to a sticky. Stickys stay on top right?

Just hit edit on the first post in the thread select sticky and send
that will make it a sticky and all replies will now be in the sticky the same way it was like a post.

i have cliked the edit button but i see no sticky button anywahere and i am admin to the site ,please help as i need to make a sticky

u click on edit then scroll down to where it says options
maximize it then click on sticky and hit send