Added a script to change de duration of a comp, and its contained precomps to a certain duration in seconds

jsx/applynewlength.jsx

@@ -0,0 +1 @@
+/* TO DO ␍    Only change lengths of layers whose endpoint is greater or equal to the old comp end point.␍    */␍function getSelectedProjectItems (){␍    var items = [];␍    var p = app.project;␍    for ( var i = 1 ; i <= p.numItems ; i ++ ){␍        var item = p.item(i);␍        if ( item.selected ){␍            items.push(item);␍        }␍    }␍    return items;␍}␍␍function applyNewLength( comp , newLength){␍    comp.duration = newLength;␍    for ( var i = 1; i <= comp.layers.length ; i ++){␍        if (!comp.layers[i].locked){␍            comp.layers[i].outPoint = newLength;␍        }else{␍            comp.layers[i].locked = false;␍            comp.layers[i].outPoint = newLength;␍            comp.layers[i].locked = true;␍        }␍    }␍}␍␍itms = getSelectedProjectItems();␍ for ( var i = 0; i < itms.length ; i ++){␍    applyNewLength( itms[i] , 60);␍}␍