if (app.project.activeItem.selectedProperties.length > 0 && app.project.activeItem.selectedProperties[0].propertyGroup(1).matchName == 'ADBE Effect Parade') {
    
app.beginUndoGroup('Apply Transform Sammich');

var selectedEffects = app.project.activeItem.selectedProperties;
var effectsGroup = selectedEffects[0].propertyGroup(1);
var firstEffectIdx = selectedEffects[0].propertyIndex;
var lastEffectIdx = selectedEffects[selectedEffects.length - 1].propertyIndex;

var first = effectsGroup.addProperty('ADBE Geometry2');
first.name = 'Sammich Top';
first('ADBE Geometry2-0001').expression = 'effect("Sammich Bottom")("ADBE Geometry2-0002")';
first('ADBE Geometry2-0002').expression = 'effect("Sammich Bottom")("ADBE Geometry2-0001")';
first('ADBE Geometry2-0003').expression = '100';
first('ADBE Geometry2-0005').expression = '-effect("Sammich Bottom")("ADBE Geometry2-0005")';
first('ADBE Geometry2-0006').expression = 'effect("Sammich Bottom")("ADBE Geometry2-0006")';
first('ADBE Geometry2-0007').expression = '-effect("Sammich Bottom")("ADBE Geometry2-0007")';
first.moveTo(firstEffectIdx);
var second = effectsGroup.addProperty('ADBE Geometry2');
second.name = 'Sammich Bottom';
second('ADBE Geometry2-0003').expression = '100';
second.moveTo(lastEffectIdx + 2);

app.endUndoGroup();
} else { alert('Select effects to make a Sammich'); }