Update, delete or merge multi-dimentional array

Update:

In this example we are trying to update an item that matches the id. (i.e. Update the name)

Delete:

In this example we are trying to delete an item that matches the position. (i.e. Delete all SG)

Merge:

In this example we are trying to merge an array into an existing array.

If you have suggestions and corrections please feel free to drop it in the comments section.