Hotkeys for copy across/down

A detailed description of the enhancement that is being requested:
can the copy down/across function be added as hot keys (combination of keys on computer keyboard)

How you hope the enhancement would assist in your business process(es)?:
Some of our end users do use these functions pretty often. The enhancement is pretty straight-forward. This exact RFE will help in the same way for which hot keys are generally made: a Improve user interface and reduce time for data input