I select Title as the key and then I have the line item set to overwrite so that I can copy list1 item A to list2 Item A but it doesn't do it.
It duplicates fine but won't overwrite the line entry. This does not answer the question as per the Stack Exchange standards. If you are facing any issue with your code then you can ask a new question describing your problem.
A very cool trick to know about the Quick Edit is that you can drag a cells content to other cells by dragging the corner of that cell down. This can come in very handy when you want to update items adjacent to each other in bulk.
In the "Find the List Item" section select the field you want to use for identifying the correct item, for example the ID field.
Learn how to perform basic create, read, update, and delete (CRUD) operations on lists and list items with the Share Point REST interface.
Let's say for instance you have a Share Point list where you manage tasks.
You have your weekly review meeting and need to perform updates on those tasks.
The Client Object Model must conclude with a call to Execute Query() or Execute Query Async(Client Request Succeeded Event Handler, Client Request Failed Event Handler).
When working in Share Point, you may come across the need to perform mass updates or batch update of properties on many items in a list at once.Typically the value will be the user field internal name with "Id" appended.So in our example we have two fields User1 and User2 so the Id fields are User1Id and User2Id.You find that there are 30 tasks that need to be updated to 'completed'. Of course you can open each one and edit it's properties using the Edit properties option, but Share Point has a number of shortcuts that can help with this.In this article we will explore the different options we have to update many Share Point items or document properties / meta-data / columns at once.The Quick Edit is type of Share Point view that changes the current of files to a grid or data sheet view very similar to excel.