Assuming an implicit parameter list with more than one implicit parameter:
case class Example(p1:String, p2:String)(implicit ctx1:SomeCtx1, ctx2:SomeCtx2)
Now, assuming that one of the implicit instances is not available (SomeCtx1) while all other implicit instances needed are in-scope, to create an instance of the class an instance of SomeCtx1 must be provided.
This can be done while preserving each other in-scope implicit instance using the implicitly keyword:
Example("something","somethingElse")(new SomeCtx1(), implicitly[SomeCtx2])