The ability to star all factories is really nice to have. And i actually like the fact that it only applies to factories of that type and level. Considering inno said we would not ever get this feature because of the fact that higher level factories change some of there productions.. i consider the fact that they managed to find a way to do this as pretty great.
To be honest... id like that level only feature to be applied to level 1 workshops as well. When i make a bunch of them for FA, i would like to be able to set them all at once, without it starting my main higher lvl factories. - Especially since they gave us that boost of time for breweries from workshops at lvl 1-2.
Last FA i had 50 lvl 1 workshops and 10 lvl 21 ws. Setting the 50 lvl 1's to a 2min brewers and setting the lvl 21 to 5 min brewers messes up my count. I usually have to try and remember to set my 10 lvl 21 ws manually to something longer, and then set the 50 ws with the 'set all'.
While i inderstand ppl probably wouldnt want 'every' lvl to be separated for workshops... i think level 1 workshops only have a separate starting time would be a nice help to ppl like me.