Hi @mambodee, and thanks for considering using Bunpro as one of the study tools to help you with your classes! As we are focused primarily on the JLPT and the grammar points covered as part of it, we tend not to stray too far from what appears on the exams within any actual JLPT level. There are definitely many grammar points that don’t appear on the exams though that we will possibly continue to add in the future. As for ところ itself, we cover the primary uses of ところで, and たところ.
In regards to particle use, a lot of it will be assumed knowledge from previous levels, as ところに, ところへ, ところで, and ところを are all possibilities that differ based on the combination of the particle that they appear with. Like ところ, many other common grammar patterns can actually appear with a far larger variety of particles than mentioned when learning. While this does create a bit of confusion when jumping into native material, most resources/texbooks usually only teach one or two of the more common combinations in order to act as a mental anchor from which real life exposure will give the whole picture.
We have a feature where you are able to create your own example sentences for any particular grammar point, and this is what a lot of our users do when they come across something that is a new nuance, or something that helps them understand part of a grammar point that they didn’t understand in the past.
In saying this, we do plan to make our grammar explanations more in-depth in the future, but this will all be information that is in addition to the ‘core’ of the grammar, rather than simply added as part of that core. This will be so that the average user will be able to differentiate between what they need to know, and what is just ‘alternative uses’ that they may not need to know for a particular exam/until they are at a higher level. Sorry for the wall of text! Hope this answers some of your questions