To be able to use PowerShell to delete list items.
To be able to use PowerShell to delete list items would be great, instead of going via the UI everytime.
I second this. While the UI is great, it takes time to navigate. This quickly becomes arduous when working with more than 10 lists. I would like the ability to build list/library item deletion into my final migration scripts without mixing SharePoint Online Powershell with ShareGate Powershell modules.
The reason one would prefer this over a 'delta' migrate is for lists/libraries with high deletion activity. In the even of a full migration with several deltas after, the destination list will include all items, including those that had previously been purposely deleted.