https://www.daz3d.com/genesis-3-jogging-turns 

G3F to G8F World's Greatest Pose Converter by AgentUnawares

Install the data folder to your DAZ3D library and check out the Pose Controls on your G8F. You'll find a BRAND NEW G3F Pose section containing a full body ERC pose dial to automatically transpose your G8F's arms and legs to match G3F. With this dial on, ALL G3F POSES WORK AUTOMATICALLY. No fiddling, no fuss, NO SCRIPTS.