Why add a handle to “fixed grip” machine?
In the wide array of gym equipment, it is uncommon to see machines that’s provide motion and freedom of grip/wrist positioning. To combat that, adding handles such as the Prime RO-T8 to machines can provide freedom at the wrist joint to prevention excessive extension or even flexion. Below is the RO-T8 handle attached to an ankle cuff.
This will be effective for those looking to target specific musculatures like the lats, upper back, and others without involving the muscles at the elbow joint unnecessarily.
There are certain accessories like deadlifting straps from EliteFTS you can buy and they can hold up to 400lbs or more of weight.