How to scale IBU and OG?

[Raysmithtx]

If I import a recipe but my equipment efficiency is different that the original recipe then the numbers no longer match up. The gravity and IBU's are off. In Beersmith I can adjust the OG and the IBU's independently to get back to the recipes figures but with the efficiency of my system. I'm new to Brewers Friend and would like to know if that is possible? Still learning here.

 

[Ozarks Mountain Brewery]

the only way to adjust the original gravity is with more or less fermentables, and your efficiency %, and more or less hops, currently you cannot work backwards.

changing to all grain will effect it too