[7mSELECT[m
Marks one end of a select range. A select range is a block of text on which
various operations (such as REMOVE, APPEND, or FILL) can be performed. To
create a select range:
1. Move the cursor to either the beginning or end of the text you
wish to select.
2. Press the SELECT key.
3. Move the cursor to the opposite end of the text.
You can then perform the desired operation on the range.