Append - Function Summary
Appends a value to the tail of a series and returns the series head.
append series value
series - The series argument. (must be: series port)
value - The value argument.
/only - Appends a block value as a block
Works on any type of series, including strings and blocks. Returns the series at its head.
/ONLY forces a block to be inserted as a block element (works only if the first argument is a block).
change - Changes a value in a series and returns the series after the change.