See participants using chat in breakout rooms

Currently we are able to see students using their camera and/or mic in their breakout rooms. The other day I notice that camera was off and their mics were off yet they were able to complete the work assigned. When I asked them about it they said that they were sharing their ideas via chat. So my question is, is there a way to see when students are chatting in their breakout rooms similar to the camera and mic? Maybe an ABC symbol will pop up while they are typing similar to the screen that pops up when they share a screen. Anyone know if this is possible? Any ideas would be helpful.