Thanks for the question. Unfortunately I don't think this is possible. We are using the Salesforce API to read/write data. It seems that the URL is hardcoded inside the URL. There may be a way to change this, but we will need to speak to Salesforce directly. We will post back when we have more information for you.
Hi. We've now added an option to select a server when using the Salesforce feed/output. You can choose from the production or test server. The default is the production server.
This feature is currently only available in Omniscope 2.8. Omniscope 2.8 Alpha should be available in the next few weeks.