Feature request- Walk navigation like blender

currently in D5 walk navigation is too slow as i feel as a blender user. in blender while walking we can also move the mouse to orbit that provide very easy and fast navigation. In D5, we have to first make a walk and then by right click we have to orbit and then again walk and orbit. it is little painful and unnecessary long process. you can use in blender, it is very easy.
Similar feature i would request after that is allow gravity mode where D5 can set ground level or eye level and then along with previous feature user can walk and orbit at the same time feeling like we are walking on ground.

Thank you for your advice, we are considering walking mode. You can also use the Fly mode and increase the movement speed now.