Kind of tricky. To remove use a small flat screwdriver and pry the two plastic push clips out then squeeze the metal clip and pull out the handle:
To install, start by removing the metal clips from their spots (this is harder than it looks)
Insert the clip into the grab handle from the back side
It should set into place like this:
Insert the push pin:
Do the same for the rest, it will look like this when finished:
Then push the grab handle into place and you're done.

If you've ever taken these apart and then tried to put them back you know what a good DIY this is
