You will be able to view station logs in Employees -> Station Logs section, this section will contain all cart actions done on the station.

It'll also show all order delete operations that were done from the backend.

Order voids can be viewed from the Sales screen in the backend, you can choose Filter By - Status, Status - Void + Voided and press Filter. This will show all void operation and voided orders.

You can also filter by Refund status there to see refunds.