Genesis 8.1 is a free asset and should be in install managers ready to download tab. If you haven't already update daz to 4.21, again it's free and should be sitting in the same tab. Genesis 8.1 installs into the Genesis 8 Folder so in your Content tab inside of Daz Studio scroll down to Genesis 8 and click on the folder to highlight it. If Genesis 8.1 is installed that's where you will find it. As above I don't use "Smart" either but I hope I have told you enough that you can find it.