Handout in Chat

Aside from the Message of the Day API, is there another script (or ostensibly a macro) that allows you to take the contents of a handout and whisper it to players?

Is there a functionality you get from that that is referable to just sharing the handout with the player in question?

Yes. Specifically, linking key reference material that they could look at in a quick glance rather than constantly opening an re-opening a handout. 

Basically the equivalent of 'show in VTT' that DND Beyond has  

I don't know of an API that does this specifically, though one could certainly be written. Can you give a specific example of how you would implement it in play? Would one handout output a dozen different things, and did you intend to be able to chose those things through a macro? It could be done to some degree by using attributes on a dummy character, even without the API, but if you are more specific about the way you intend it to be used, that might help. For instance, did you envision this as being invokable by a player? ("I need to know the history of that god or that guild, I can push a button and have it delivered to me.")? Or more a player asking "I need to know more about this". and you push a button and it is delivered to them by you? And would this be short information, or richly formatted with text and pictures? Depending on your answers, I can see a couple of ways this could be achieved with off-the shelf parts.

I really like how the motd window looks though, wish the handout ui didn't look so ugly and clunky.  I personally wouldn't want handouts in chat though, I have a 9 person table, chatoutput is already spam central.  

I understand a little better your distaste for chat menus with that many players. Do you have as many as possible set for self whispers?

@keith  I run a table of 7 superhero players. A lone character sheet isn't always enough to contain the information and making players have to clikc between their charactersheet handout and more is a struggle. Having something that can be sent to chat be it from Paradise Island, the Fortress of Solitude or even as I mentioned a quick 'Display in VTT' style button like DnDBeyond has would be great.  I suppose I could try to hack up MotD and see if that works.