In your Talend Studio installation directory, there is a folder called "workspace" which lists all your projects and within those projects all your jobs. I believe you can search there for any string. HTH, Elisa
Beginner's answer:
Your job designs are stored in xml files within your workspace. The various properties of components are embedded somewhere within these files.
You can search for these within the xml text. You should be able to search these with a tool like
http://www.wingrep.com/features.htm I don't know how safe it is to adjust these through a direct text edit versus through the client interface.