Don't Retype... Replicate
A worksheet often contains data in one location that must also appear elsewhere in the worksheet. For example, in a database, the field names entered as part of the Input range must also appear in the Criterion and Output ranges. Retyping entries not only wastes time but it threatens to introduce errors that may affect a model's performance.
The Copy command is specifically designed to duplicate worksheet data. You issue the command and instantly, 1-2-3 can copy hundreds of cells to a new location. In 1-2-3 Releases 2.01 and 2.2, that location will be on the same worksheet. But in 1-2-3 Release 3, the destination might even be another worksheet or file currently in memory.
SINGLE CELLS ARE SIMPLE
At this simplest, the Copy command duplicates the contents of a source cell in a target cell. When you press the slash key and select Copy, 1-2-3 prompts you to specify a source range, which is the cell or range of cells containing the data you …