You can insert an element into a 1D array and a row or column into a 2D array. To add an element to a 1D array, switch to the front panel, right-click the array, and select Data Operations»Insert Element Before. To add a row or column to a 2D array, right-click the array and select Data Operations»Insert Row Before or Insert Column Before.
You also can programmatically insert elements, rows, columns, and pages into arrays.