How can I use an item's value in another item's HTTP request?

Been struggling with this for some time now, any help would be appreciated.

I have an item called HomeSessionID. This contains a web session value and updates every hour.

I’m trying to bind several other HTTP items to a URL, but in those bindings, I want to use the value of HomeSessionID. Is this possible, and if not, how would you folks go about doing this?

Rather than hitting a URL of this sort:


I want to hit it as such:


The bindings are fixed and you can’t use a variable in them.
You could use the http actions to achieve the same sort of result: