5.5 Uses of advice-add in SES

copy-region-as-kill

When copying from the print area of a spreadsheet, treat the region as a rectangle and attach each cell’s formula and printer as 'ses properties.

yank

When yanking into the print area of a spreadsheet, first try to yank as cells (if the yank text has 'ses properties), then as tab-separated formulas, then (if all else fails) as a single formula for the current cell.