How to ensure the key object remains stationary (at the first of sel)?

[dublove]

Ensure the key object is always the first element in “sel”.
Other objects should always be positioned to the right.

I intend to set sel[j].geometricBounds so that the keyObject remains stationary while the others are arranged to its right.

The code below doesn't seem to be working.

var sel = app.documents[0].selection;
var key = app.selectionKeyObject;
var sb = key.visibleBounds;
sel.sort(function (a, b) {
var a = key.visibleBounds;
var b = b.visibleBounds;
if (a[1] > b[1]) {
return 1;
} else if (a[1] < b[1]) {
return -1;
}
});

[dublove]

It turns out you need to use move.

The ideal approach, of course, is to keep keyobj stationary while aligning the elements before and after it.
This seems difficult.