I am not a BL team member, but I also moved from Cura to BL Studio and missed the same feature.
I overcome the issue by designing the model as a set of part(s).
Afterwards, I can define distinct printing settings for each part and change the type in the slicer to achieve a goal.
You may also try exposing the software gap in the BL Studio Git page to increase the chances of it being addressed in upcoming releases.