FILLARRAY array list
FILLARRAY initialized the array or bytearray named in its first input with the data in the list given as its second input. If the list is non-structured, the array is filled sequentially regardless of its dimensions. If the list is structured, the array is filled according to the structure of the list and its dimensions.
? MAKE "A ARRAY [2 2]
? FILLARRAY "A [WORD.1 WORD.2 WORD.3 WORD.4]
? LISTARRAY "A
Result: [[WORD.1 WORD.2][WORD.3 WORD.4]]