在Sharepoint 2013中使用javascript个性化添加部分

We have a customer that wishes to make it easier for the user to customize their webpart pages. We are therefor using javascript to build a simple grid where users can add, remove and move Add In Parts (both webparts and AppParts and both OOTB and custom) from the different webpart zones on the current page. Most of the features are working fine but we have two problems we can't seem to find the answer to. In this case we are working with a Farm Solution but we want it to work with Office365 as well.We have a customer that wishes to make it easie