How to access outer {{#each}} collection value in the nested loop

What is the standard way to access outer #each collection values in the loop? for example: ``` <template name="example"> {{#each outerCollection}} <tr> {{#each innerCollection}} <td>{{aaa}}</td> {{/each}} </tr> {{/each}} </template> Template.example.aaa = function(){ // cannot access outerCollection values } ``` in above Template.example.aaa, `this` points to the inner collection. I cannot find way to access outerCollection items. My solution is like below, I am defining my own helper function. Is it a standard Meteor way to achieve this purpose? ``` <template name="example"> {{#each outerCollection}} <tr> {{#each innerCollection}} <td>{{myHelper ../outerItem innerItem}}</td> {{/each}} </tr> {{/each}} </template> Handlebars.registerHelper('myHelper', function (outItem, inItem) { // can access outerCollection via outerItem }); ``` I found a similar question for the case of inner event handler access.