Yeah, entering driver data into WinISD is cumbersome.
For the single coil 4 ohm driver, enter in order as I've listed below, the green values shown in the pic below, and use TAB after each entry to produce auto values (which are in blue).
Make sure the units are correct - click to select units if needed.
Mms, Cms, Re(s), BL, Qms, Xmax, Vas, Le, fLe @1000, I believe Xlim is 41mm for this driver
Save...........
TC Sounds.jpg
brucek