dither question

[BabaG]

are the -binary dither and -dither commands linked? in other words,
would i use the binary dither command to set a dithering type before
applying the dither?

with a space in the -binary dither command, how do i use it in a script
without the script thinking 'dither' is a value?

is there a value for dithering? like, -dither 20, to affect the amount?

thanks,
BabaG

[xnview]

no, -dither is only used for colors/grey