Can't open dynamo from revit project


Is there a way that I can link a revit project to Dynamo? So far i’ve only been able to open it from a conceptual mass. But when I open it from my existing revit project the dynamo icon stays gray.

Thanks in advance.

<!–StartFragment–>Hi there, As far as I know, Dynamo icon is grey when it is open. You can just open one dynamo for each revit.