apoc.coll.insertAll
Function

Details
Syntax	`apoc.coll.insertAll(coll, index, values)`
Description	Inserts all of the values into the `LIST<ANY>`, starting at the specified index.
Arguments	Name	Type	Description
	`coll`	`LIST<ANY>`	The list to insert the values into.
	`index`	`INTEGER`	The position in the list to start inserting the given values.
	`values`	`LIST<ANY>`	The values to be inserted.
Returns	`LIST<ANY>`

Usage examples

The following examples insert the values 11, 12, and 13 at index 3 in the list using both APOC and Cypher:

apoc.coll.insertAll

WITH [1,3,5,7,9] AS originalList, [11,12,13] AS listToInsert, 3 AS index
RETURN apoc.coll.insertAll(originalList, index, listToInsert) AS output

Using Cypher’s list concatenation

WITH [1,3,5,7,9] AS originalList, [11,12,13] AS listToInsert, 3 AS index
RETURN originalList[0..index] + listToInsert + originalList[index..]

Results
Output
[1, 3, 5, 11, 12, 13, 7, 9]