DiaQ should work without plyGame (plyBlox) and plyRPG present. If you go that route you need to code to interact with it. The DiaQ source is included in
plyoung\DiaQ\Documentation. Extract it somewhere because you will want access to it to learn what function can do - the source is heavily commented for this end.
If you look in the
plyoung\DiaQ folder you will see a
diaqsample.unitypackage. Extract it and learn from the included sample scene and script to get an idea of how to get started.
You should also be able to use it with plyBlox visual scripting. See link given by William to see what should be included there. From tne DiaQ folder you only want the Blox related stuff so remove anything which seems to be plyRPG integration.