How to set dynamic environment value to amqp-out node?

I have amqp-out node which has static value for now. But I want to set those values into dynamic values by getting values from global context. Those Host, Port and Vhost fields only accept string value in that node. So, I'm having difficulties setting dynamic values.

If the node does not support sending those properties in the message (check the help text for the node) then you can't do that. You should be able to use environment variables though. But that does not give true dynamic values as the value can't be changed after node-red is started.