openHAB JavaScript library releases

Hi thanks for the awesome work. Sorry if I have missed anything anywhere already, I’m curious if you had seen the below posts in the OH5 feature request thread in relation to extending the functionality of the send command / update methods in JS?

I have read through the changelog and noticed references to additional parameters for commands. Is there already existing functionality, or is that something that can be added to JS scripting to interact with the source property (string) in item command events? Thanks