Kelly,
Thanks for the clarification with the screenshot. I discovered that the SAP System and SAP Client can't be set with any configuration setting. There is currently an open Idea for this in SAP Idea Place. Vote up the idea if you would like to support it.
Sorry I don't have better news for you.
SAP Idea Place
https://cw.sdn.sap.com/cw/ideas/7557
Knowledge Base Article
1644271 - Is it possible to have a specific system and client
specified in the SAP System and SAP Client text boxes when launching InfoView
with SAP authentication in BOE XI 3.1?