I spend few hours (4)  to find out how to set the values for small medium and large to create multi size images.
This because on mobile devices the loadingtime takes to long for the right UX.

I update to 1.4.4.2
I removed older versions
I removed juiceboxBuilder
I disconnect other HD's
I removed juiceboxBuilder from copy HD's
I search the menu 80 times
I read all the tutorial items more then one time
I read 'Creating Multi-Size Images' over and over again...

But I can't find it.

Cost me a lot of time (=money)
'little' FRUSTRated... at this moment.