Not meaning to cause conflict with the previous poster, but I have found that it generally takes 16-18 days for button quail to hatch, turning them until day 13, and then going into "lock-down" mode for the remaining 3-5 days. Since this is your first hatch, you will find that your most valuable learning comes from trial and error with your current incubator settings. On my first hatch, I kept the temp at 100F degrees, but found that my buttons hatched early, with several remaining in the shell and dead after pipping. My second hatch was at a lower temperature (99.4F degrees) with better success. While some web sources recommend temperatures as high as 101F degrees, I wouldn't try this with my particular incubator due to the fact that I had such an early and less than desirable hatch with higher temps the first time. It may take a few hatches to get a sense of where your temps and humidity readings should be in your specific brand of incubator. If it is a still-air incubator, you want the temps to be slightly lower, while an incubator with a fan will require slightly higher temps. Also, with my Brinsea incubator, I have found that I need to increase the humidity during the incubation period beyond that which is recommended. So, again, much of it will be trial and error while you learn the operation of your incubator and observe the results of your hatch. If you are able to obtain the following book from Stromberg's website, it is well worth the read to learn more about how to raise buttons (I found this book to be the most helpful to me)...
A Closer Look At Button Quail - The Care And Breeding Of Chinese Blue Breasted Quail, by Jodi McDonald