First time step by step in building Bean Shell WorkflowManager scripts

Does anyone in Joget world teach or provide a step by step video for beginners in building Bean Shell Workflow Manager scripts, plug-ins and similar extensions, etc. When I search such community questions, the answers only give simple links to documentation which already presumes a high degree of familiarity with the task that is being asked about. My partner and I already each have 40 years of IT coding experience in other environments. But we can find no step by step guide to follow in these areas of Java extensions using underlying Joget methods and we end up guessing and experimenting with the steps wasting many precious hours. The Workflow Manager page is a good example WorkflowManager. No doubt a handy reference for those who have done similar coding many times before. But an enigma to those who have not. We need a step by step guide to get to our first one. Most Joget documentation and community question answers seem to be of this form. A couple of links to hints, but no detailed guidance for first time attempts to extend Joget beyond the use of the basic GUI tools. Who can step up to this. In our case, we are willing to pay to save hours of experimentation, if such a service exists. We love and promote Joget but need some help as our needs extend into the Java extensions realms. We learn quickly, but hours of guessing at the presumed steps specific to getting from our need to a completed WorkflowManager plugin using the documented Joget methods is not helpful. And there must be others who would need such help and then sing Joget's praises even more.