AE Subframe layer Nudge

AE subframe layer nudge script
API #code/js

Code

var comp = app.project.activeItem;
var lr = comp.selectedLayers[0];
if (comp.selectedLayers.length > 0) {
    var frl = comp.frameDuration;
    app.beginUndoGroup("Layer Nudge");
    lr.startTime += frl/4; // or -= to move the layer to the left
    app.endUndoGroup();
} else alert("Select a layer");