Hi matryona12, thanks for playing with my mod!
Excluding buildings is something I will be adding soon - it sounds like a common grievance, and since I have a different mod that makes buildings free to craft, there isn't much reason to make this mod ALSO make them (almost entirely) free.
Could you please explain the reason(s) why you'd like to specify only assemblers, and to exclude the other building types from multiplying recipes?
Part of why I have the multiplication apply to everything is so that it will play nicely with other mods. Adding this type of exclusion should be possible via recipe categories, but in order for me to keep the mod itself simple (which I very much want), it would fall to the user to define which recipe categories (smelting, chemistry, etc) that they want excluded - slightly less complex than defining recipes to skip, but rather similar overall.