The thing about XPOR is ...
... you get a lot built-in. And it's almost limitless - so Help and Guidance Resources are here for two reasons;
We have built up a significant library of Guidance Resources, which are (naturally!) inter-connected. For example, if you are adding a List Form on a Web Page, you can configure the Form to provide access to the Column Filtering feature - this is THREE Guidance Resources - one for the creation of the Grid Form, one for the addition of a Grid Form to a Web Page and another for the configuring and use of Column Filters.
Putting all of this into one Guidance Resource made it very long and, in any case, we use these Guidance Resources in context of other Guidance Resources as well - Grid Forms are connected to "Data Sources" and "Dashboards" and "Permissions" etc.
Many Guidance Resources are available directly from the feature you are developing. For example, if you are building a List Form in Object Modeller, we connect this feature directly to the List Form Guidance Resource.
It's all online - without any access permissions. And we have a large library of YouTube videos to support the text - the videos give a good overview and the text provides the detail.
Happy XPOR-ing!