When FROM2 is supplied or the Mode is set to Add Points this gives the number of points which are tested. This should be larger than the MINP/Add Points value.
If the GRID/Grid parameter is provided/gadget is selected then this number of points is initially added in a square grid, otherwise they are added randomly.
From the GUI this defaults to 150 which may be a reasonable value.
The T key can be used to increase this value. With the shift key the value is decreased.