Text as single object for slicing

I'm sure there's an answer somewhere in this forum, but I can't find it after 30 minutes of searching…

In my model (https://cad.onshape.com/documents/ae4467d6048edecfa7620ce9/v/e77ed36fd16acad46f7020c2/e/9810532456b917898ce81bae?renderMode=0&uiState=6779958ecbf497539806b2f8), I think I created the embedded text properly (open to feedback here). When I export the STL for multi-filament printing, I need to separate the STL into objects and then select each letter and assign a different filament individually. Is there a way to make all the text a single part, or somehow assign it in Onshape so that I can select all text as a single object in the slicer? Just looking for a faster way to do this. Image of what I'm working on below. Thanks!