Experiences so far, I’ve written in the etherpad and mentioned when I introduced the helpers that one was specifically responsible for zoom and other was the etherpad helper. In our pre-workshop planning we had discussed that they would be primarily responsible for chat and questions in each medium. While we didn’t get a lot of questions in the chat (despite prompting) with this group, I heard later from the zoom helper that they did get private messages asking for help and were able to reply and solve the issue. That said, I’ve not tried moving them to a breakout room as I was worried they would miss out on materials.
In another workshop where I was helping, I was the defacto “lead” helper and I would ask other helpers to answer questions that came up in chat so we could split up the work and then answer in private messages. That seemed to work well.
For my own interaction with learners when I’m an instructor, I’ve found people respond most in zoom chat. First I was giving them options for how to interact, now I ask specifically for them to type info into the zoom chat and I’ve been getting more replies. There still are a lot of times when I ask “everyone type the answer to this question in zoom chat” and then the first person replies and no one else does, kind of like in in-person workshops. I’m trying to give them some leeway in that since they might have trouble switching back to the chat window all the time.