How to send Roger That in Hipal Walkie Talkie app?

to send Roger that in a high power workout tap on this icon in the chat and then tap on OK button in the bottom just first button to the left from the green button and then as you can see in the chat it will just say I have sent Roger that so it's kind of like a fun feature and it's it's cool to communicate with that in the group chat and just send it to each other