Hi Kris,
If you have a script associated with your interaction and configure the start page of that script with a Page Load Action that opens a URL, you can open a URL that way. I only tested with a hard coded URL but you should be able to pass the URL as a parameter from Architect. The agent does not need to select the script, the URL should open automatically. Worth noting I have the Interaction pane in the Utility bar and am using Salesforce Lightning.
Thanks
Steve
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Stephen Walter
Genesys - Employees
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