How to pass the list of objects in workflow

I am new to Mendix  platform , I need a clarification About doubt, How to choose multiple list of objects in data grid and pass it on workflow , kindly give some detaile explanation .  
1 answers

You could have a helper object that gets passed, connect all the items you want to pass with associations to the helper object, pass the helper object to the workflow, that way you can get the list of items in the next stage of the workflow, by retrieving them through the helper object.