The function "Selection by special Components" can be found in the analysis report:
First, you can select a system and one of the listed special components in the dropdown menu below:
The System Scout will then show you a list of all objects that meet the selected conditions.
This function helps if there was an SAP upgrade: For example, if SAP no longer supports Queries with cell definitions, it would be a lot of effort to identify the Queries manually because each Query would have to be opened separately.