Transfer of bulk data into and out of a layer

Transfer of bulk data into and out of a layer

The table view is is very useful.  It is particularly useful to be able to export it to a spreadsheet.

What I would also be able to do is the reverse.  For many reasons - for example:
• I would like to modify the data on a spreadsheet and then reinsert it in bulk to the map layer
* I would like to adapt a data spreadsheet into a format that is importable into a new map layer
• I would like to be able to enter all the data associated with a new feature into a layer at one go
* I would like to take data exported from another GIS system and import it wholesale into PO

Is this kind of functionality in the pipeline.  If not can anyone suggests useful workrounds?