I'm working on my first beatmap attempting to get into the hobby. I'm literally stuck on the second note of the song 
I have a slider. I want it to start on a beat and end off of one. However, I can only get it to stop at the next beat. I'm not sure how to do otherwise, since I can't move the end individually on the timeline. I really need bare-bones instructions here, because from what I can gather there's much more depth than what's covered in the faq.

I have a slider. I want it to start on a beat and end off of one. However, I can only get it to stop at the next beat. I'm not sure how to do otherwise, since I can't move the end individually on the timeline. I really need bare-bones instructions here, because from what I can gather there's much more depth than what's covered in the faq.