Steps
Choose Search → Search...
Alternatively, you can choose Ctrl + H.
In the Object Name field of the ABAP Object Search tab, enter the name of the object for which you want to search.
You can limit the search scope by choosing either the Workspace or ABAP Project radio button.
You can further limit the search by selecting the Restrict Search to Favorite Packages checkbox.
Choose Search.
The repository objects that match the search scope are displayed in the Search view. The result is grouped by ABAP packages.