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Create a Hyperlink field with a formula that passes in the CASE ID into this structure:
Code Block https://mydomian.lightning.force.com/lightning/app/06m6F0000024IO5XXX/r/Case/5006F00002bXvwbXXX/view
To find the URL of the App, copy the link from the Apps menu (right click, copy link address), paste that into notepad, grab the ID from it.
So the formula is
Code Block HYPERLINK("/lightning/app/06m6F0000024IO5XXX/r/Case/" & Id & "/view",CaseNumber)
Note: you may want to store the APP ID in a CMDT rather than hard code it.
name the field Open in Lightning Console (OpenConsole__c) or similar
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