Stop a grid from saving automatically

Hi, 

I have a grid I created has a data source from also a new table I created, I want to stop the grid to save automatically 

or 

if I can add values for the grid with each record the grid add in the table it would be better

Details: 

the grid has three fields, and the fields I need to add it's five.. but because the other 2 fields are the same every time I open the grid I didn't put them in the grid, on of them it's saved with the other 3 fields, but the last one it's empty.. I don't why! maybe because I have a range on this one.. I don't :( 

if any help I would be thankful