TWO values at once into change node

I would like to insert two variables into the node - change longitude and latitude so that I can then generate an http request and I get the weather according to location, but if I give two at once then it does not work for me
2

only if one is fixed
1
pay and payl are two injects(degrees)

See this article in the cookbook for an example of how to join messages into one object.

The messages do not wait for each other. If you want to combine 2 messages use a join node. Inject a payload to the join node with a topic lat and the other msg with a payload and a topic lon.