from this link above, I learned that mass editing is very useful for current design, we really appreciate it and want to apply this to our current design, but sadly DEV says this is not available from technical side, I’m not sure, is the control behind Mass editing still on developing?
First, it is important to understand that mass editing is not a control or service. The Fiori guideline describes how to use standard UI5 controls for mass editing use cases. These controls are ready to use and support the described functionality. Off course, development effort is required to show the aggregated data in the respective controls and to write everything back to the system when the user has made his/her changes.
When using regular UI5 controls, this should not be a problem. Fiori Elements seems to have some issues with mass editing that we are investigating.