|The data structure to insert a row into|
|integer||The index of the new column to insert|
|real/string||Optional: A value to assign to all new cells (default 0)|
Adds a new column to a
ds_grid at the given index, shifting any columns that follow. Optionally also sets a value for empty new cells in the grid (default value is 0).
ds_grid_width will be increased by 1. For this reason, the new column index can be input as less than or equal to the current value of