Well... I did Documentum Consulting/Customization/Development for about 21 years and I will be leaving that topic end of this month.
I joined
fme company in 1999 and
@Hartmut_Clausen helped me to get started with EDMS98 and 4i. Both of us were early members of the Documentum Support Forum.

Then I did the whole further path through all those versions from 4.2 to 16.4... and a lot of products and tools: Desktop Client, Intranet Client, Webtop/WDK, DA, DAM, WebPublisher, Site Caching Services, Media Transformation Server, Application Builder, Composer, D2, DocBasic, DQL, DFC, DQMAN, ...
Finally I have set up my personal situation to be more independent and to decide free what computer/software topics to learn or to join ...and in what way (private playground or business/job).
Now I like to learn/focus on Artificial Intelligence / Machine Learning / Data Mining with Python / R / TensorFlow... I also would like to focus again on Mobility Solutions which was my 2nd (minor) subject while studying Computer Science and my first job 1992-99... well I should not get bored ;-)
I hope that I did not cause too much trouble and head shaking while posting my questions here... and I hopefully could provide some solutions to your problems.
I want to say "
Thank You" for all your help and answers to my problems being discussed here...
And special thanks to these forum members standing out by their knowledge and their attitude to help others:
Stay healthy in current difficult times and hopefully get your Documentum tasks done...
Goodbye, Jürgen.