Drag and drop support is a great feature and you can also install and uninstall apps with ease, including setting up batch operations to help get things completed more quickly.
Robust performance, and a suite of interactive development tools, attracted the interest of clients previously shackled by traditional in-house punched card/batch operations and unsupportive technicians.
Batch operation is commonly used in smaller scale plants such as pharmaceutical or specialty chemicals production, for purposes of improved traceability as well as flexibility.
Filter press is a fixed volume and batch operation, which simply means that the operation must be stopped to discharge the filter cake before the next batch can be started.
When the checkbox is hidden, you can still select a message for a batch operation by dragging it to the right in the list view -- making the checkbox appear temporarily.