XnView Software

I want to convert some TIF-Files with an alpha channel via "Batch Processing" into smaller JPGs with following steps:
1. Convert to TrueColours (to ignore alpha)
2. Image Resize
3. Save as JPG

So for, so good. The result is exactly what i expected.

But when I save the settings above in a script ...

is there a way to batch resize a tiff and keep the alpha channel? i tried it again and again and always i loose the alpha channel...