So am looking for a script / plugin to

1. Export Multiple selected resolved Hierarchy objects to STL files.
2. Has to process Volume Builder and Mesher.
3. export All files in one go to a selected folder.

Select n go was my go-to for this
https://fcstudios.gumroad.com/l/SelectNGo

But it doesn't work properly post r21 ( I am stuck on elect n go v2 on r21 ) as it seems to ignore Volume Builder/Mesher - I've tried to speak with them but with no joy - I know they are very busy on other projects. and does a lot more than I need.

This is specifically to export sculpted / Volume built models for 3d printing hence the STL file.

Generally, I have 10-20 parts in a file like this and select the Topmost of each and export -

Part1(Null)
Volume Mesher
Volume Builder
object1
object2
object3

Part2(Null)
Volume Mesher
Volume Builder
object1
object2
object3

What is the best way to go about this?

Thanks in advance.