During applied solution development you might often need to implement navigation from an applied object form to data that is logically connected to that object.
It can be a list of a subordinate catalog, or a register where this object creates records, or a register where a dimension with this object type is specified as the leading one, or filter criteria that include this type, or objects that can be generated based on this object type, and more.
A typical related list usage scenario is navigation from a document form to the list of register records created by the document in a specific register.
All the scenarios described above are managed by the platform automatically. The commands for navigation to the related data are generated based on the data stored in configuration objects. Some of the commands are made visible immediately and they appear in forms. Some commands are created but are not made visible by default.
So if you do not see the command for navigating to some related data, it is likely that all you have to do is enable the command visibility in the form interface.