How can I make the marker event pulse width longer in NI-FGEN?

[papayi]

I want to generate a marker event on PF0 line using NI-FGEN.I can set the marker event pulse width but when I was trying to make the pulse width units as 65 I was getting an  error-1074115931. 

How can I make the marker event pulse width longer without using script as I am using PXI-5412 which is not supporting Script.

Can anyone help me out in doing the same?