Folder object type is not searchable by default. However, the following tweaks can help:
- Types shown in the type picker on the Advanced Search is driven by 'All Applicable Object Types' preference. The value for this preference is taken from searchableTypes.properties file.
- Add the internal name of the object type (ex: wt.folder.SubFolder) to searchableTypes.properties against allSearch component id.
ex : PDMLink.allSearch=wt.folder.SubFolder,......
- Restart windchill
- goto Preference Manager> Search> All Applicable Object Types Preference
- Set the preference value. The wizard shows a type picker
- In the type picker you'll be able to see the folder obejct type as unselected. Select it and click on ok.
- Launch the type picker on the advanced search page. It will now start showing the newly added object type viz Folder.
Please note: I am not sure if PTC would recommend adding extra types or sub-types to the object type picker.