Macros, 'speaking as' and image thumbnail query.

Seems like a simple question that I'm just a bit too dim to figure. I currently have a macro designed to allow me to use a rollable table to pull a short description of an attack - "Bob swings his sword really hard" for example - and then roll a repeatable attack. That's all working fine. I'm using /as @{selected|token_name} to have it show in the chatlog as being from the selected character, which is also working fine. However, when I use the "Speaking As" dropdown at the base of the chatlog, the game shows the image of the character next to the text. Using /as seems to leave this blank: not a major problem or anything, but it's a little frustrating. Anybody know if it's possible to have this show as if I was using the dropdown box to manually write this in? Google is failing me right now...

The Switch API script changes the speaker in the same manner as the drop-down. The /as command just alters the display name shown (useful when there isn't a character or monster with its own avatar, and you just need to speak as "Villager A" or some other fairly insignificant entity you just need for a moment).  If you use the Switch API, all actions until you change again (using the script or the dropdown box) appear as that entity. 

Switch API - sounds perfect. Many thanks!