Move active layer to initial layer stack position

For example the active layer as a layer ID of 36 in the layer stack.

The active layer moves to the top of the layer stack

Can the initial layer ID be used to return the active layer to its original position?

The Index changes with the move, the ID does not indicate the original position in the Layer stack per se, so unless you can undo or use the History to undo the change the information is just not available. 

This would move a Layer, identified by ID, to a position, defined by index. 

// 2023, use it at your own risk;
if (app.documents.length > 0) {
    var theLayers = collectLayersNamesIndexAndIdentifier();
    moveLayerTo (theLayers[1][2], theLayers[3][1])
};
////// based on code by mike hale and paul riggott //////
function selectLayerByID(index,add){ 
add = undefined ? add = false:add 
var ref = new ActionReference();
    ref.putIdentifier(charIDToTypeID("Lyr "), index);
    var desc = new ActionDescriptor();
    desc.putReference(charIDToTypeID("null"), ref );
        if(add) desc.putEnumerated( stringIDToTypeID( "selectionModifier" ), stringIDToTypeID( "selectionModifierType" ), stringIDToTypeID( "addToSelection" ) ); 
        desc.putBoolean( charIDToTypeID( "MkVs" ), false ); 
    try{
    executeAction(charIDToTypeID("slct"), desc, DialogModes.NO );
}catch(e){
alert(e.message); 
}
};
////// move active layer in front of other layer in layer stack //////
function moveLayerTo (thisLayerId, theIndex) {
   selectLayerByID(thisLayerId, false);
var idlayer = stringIDToTypeID( "layer" );
    var desc58 = new ActionDescriptor();
        var ref19 = new ActionReference();
        ref19.putEnumerated( idlayer, stringIDToTypeID( "ordinal" ), stringIDToTypeID( "targetEnum" ) );
    desc58.putReference( stringIDToTypeID( "null" ), ref19 );
        var ref20 = new ActionReference();
        ref20.putIndex( idlayer, theIndex );
    desc58.putReference( stringIDToTypeID( "to" ), ref20 );
    desc58.putBoolean( stringIDToTypeID( "adjustment" ), false );
    desc58.putInteger( stringIDToTypeID( "version" ), 5 );
        var list11 = new ActionList();
        list11.putInteger(thisLayerId);
    desc58.putList( stringIDToTypeID( "layerID" ), list11 );
executeAction( stringIDToTypeID( "move" ), desc58, DialogModes.NO );
};
////// collect layers //////
function collectLayersNamesIndexAndIdentifier () {
// the file;
var myDocument = app.activeDocument;
// get number of layers;
var ref = new ActionReference();
ref.putProperty(stringIDToTypeID('property'), stringIDToTypeID('numberOfLayers'));
ref.putEnumerated( charIDToTypeID("Dcmn"), charIDToTypeID("Ordn"), charIDToTypeID("Trgt") ); 
var applicationDesc = executeActionGet(ref);
var theNumber = applicationDesc.getInteger(stringIDToTypeID("numberOfLayers"));
// process the layers;
var theLayers = new Array;
for (var m = 0; m <= theNumber; m++) {
try {
var ref = new ActionReference();
ref.putIndex( charIDToTypeID( "Lyr " ), m);
var layerDesc = executeActionGet(ref);
var layerSet = typeIDToStringID(layerDesc.getEnumerationValue(stringIDToTypeID("layerSection")));
var isBackground = layerDesc.getBoolean(stringIDToTypeID("background"));
// if group collect values;
//if (layerSet != "layerSectionEnd" && layerSet != "layerSectionStart" /*&& isBackground != true*/) {
var theName = layerDesc.getString(stringIDToTypeID('name'));
var theID = layerDesc.getInteger(stringIDToTypeID('layerID'));
var theIndex = layerDesc.getInteger(stringIDToTypeID('itemIndex'));
theLayers.push([theName, theIndex, theID, layerSet])
//};
}
catch (e) {};
};
return theLayers
};

I think that you would first need to save the layer index into a system variable or text file etc.

Then retrieve the layer index to move it.

The following will move the active layer to index position 1:

moveToLayerIndex(1);

function moveToLayerIndex(theIndex) {
	function s2t(s) {
		return app.stringIDToTypeID(s);
	}
	var descriptor = new ActionDescriptor();
	var list = new ActionList();
	var reference = new ActionReference();
	var reference2 = new ActionReference();
	reference.putEnumerated( s2t( "layer" ), s2t( "ordinal" ), s2t( "targetEnum" ));
	descriptor.putReference( s2t( "null" ), reference );
	reference2.putIndex( s2t( "layer" ), theIndex );
	descriptor.putReference( s2t( "to" ), reference2 );
	descriptor.putBoolean( s2t( "adjustment" ), false );
	descriptor.putInteger( s2t( "version" ), 5 );
	list.putInteger( 2 );
	descriptor.putList( s2t( "layerID" ), list );
	executeAction( s2t( "move" ), descriptor, DialogModes.NO );
}

@Polycontrast – Layers are fun aren't they? 

I will tag scripters who can help you @c.pfaffenbichler @Stephen Marsh @jazz-y @r-bin