Grid Coordinates

Hi all,

What is the wright way to take a coordinates from an input and put it in the grid.

I have two inputs one for the name, and one for the coordinates (where to insert this name)

I don't want to make two inputs for the cell (one for the row, and one for the Column) , for some reasons i need it to be in one input like (3,5) or (18,29) or the wright format.

I made an example for help .

Thanks in advance.