@miguelbuyme
Perhaps i missunderstood your comment…
“The original code works fine with just the first “if” statement. Once the “else if” statements are entered, nothing happens at all.”
Then i ask myself, how your code could work the first time → very strange.
The important part of your original code…
if ( $w ( ‘#dropdown4’ ). value === ‘duplex’ )
Anyway, if it works for you right now, well done! 