UCSO - Universal Cargo System for Orbiter 2020-02-06

Universal Cargo System for Orbiter (UCSO) is a free, open-source cargo management system for theOrbiter space simulator. It’s designed to be an Orbiter 2016 alternative of UCGO. It provides a richAPI for add-on developers to support UCSO in their creations. 
Check the development thread for bug reports and progress updates.