Touch OSC with Davinci Resolve issues

Hi, I’m hoping someone can help? I would like to control Davinci Resolve’s edit pages using messages sent from “Touchosc”. The problem at the moment is that both apps are on the same PC, so when press a button in touchosc it takes the focus away from davinci. I understand there is a feature in BMT to add to the outgoing message to keep focus, but I’m not having any joy with this. If anyone has any ideas, I would be grateful. Many thanks