Comment # 33 on bug 1047385 from Josef Reidinger

(In reply to Michael Chang from comment #27)
> Hi Josef,
> 
> I couldn't find "Include Add-On Products from Separate Media" options any
> longer in openSUSE Tumbleweed and Leap 42.3 installation. Is the function
> removed ?
> 

it is removed from UI. You can still use it as boot parameter addon=<URL> or as
steffen said you can use dud which affect also insts-sys