Currently two parameters can be defined to override the standard functionality of data modification: editfunc and addfunc. With those defined in the parameter section of the navgrid call we can use our custom functions to implement that functionality as we see fit. However that is not true for 'delete' and, to a lesser extent, 'view' (ie delfunc and viewfunc).

It would be interesting to add those parameters so we can launch our own methods. I know it's relatively simple to mimic them with custom buttons but, well, it's also easy to do for the other buttons that implement add and modify…