I also edit pose files to change a flat footed pose to one wearing heels (normally female!!). You have to pose the feet and toes manually then raise the hip to get the figure to the floor to get the bend angles and hip ytran (in Poser units). I normally use Save As and copy the icon to keep both version

Poser 11 , 180Gb in 8 Runtimes, PaintShop Pro 9
Windows 7 64 bit, Avast AV, Comodo Firewall
Intel Q9550 Quad Core cpu,  16Gb RAM, 250Gb + 250Gb +160Gb HD, GeForce GTX 1060