This is a feature request for keybindings in the table component which are common in most spreadsheet applications. For example:
arrow keys to move active cell
cmd+c to copy active or range content
cmd+p to paste content in active cell
"=" to type in formula in active cell
etc...
RE: arrow keys: this is already implemented. Make sure you have enableFocus=true.

RE: Cmd + C should already be possible. See the getCellClipboardData prop here: http://blueprintjs.com/docs/#table-js.table.
RE: Cmd + P: I'm assuming you mean Cmd + V. This gets into spreadsheet-y features, which we're starting to consider more actively.
RE: type-char-to-enter-edit mode: We've had this on our radar for a bit, but I can't find the issue actually.
I've added the latter two tasks to our existing issue about keyboard shortcuts: https://github.com/palantir/blueprint/issues/1080. Will close this in the meantime.
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RE: arrow keys: this is already implemented. Make sure you have

enableFocus=true.RE: Cmd + C should already be possible. See the
getCellClipboardDataprop here: http://blueprintjs.com/docs/#table-js.table.RE: Cmd + P: I'm assuming you mean Cmd + V. This gets into spreadsheet-y features, which we're starting to consider more actively.
RE: type-char-to-enter-edit mode: We've had this on our radar for a bit, but I can't find the issue actually.
I've added the latter two tasks to our existing issue about keyboard shortcuts: https://github.com/palantir/blueprint/issues/1080. Will close this in the meantime.