Question about Acer 5G Router Predator Connect X5 5G CPE

Can someone tell me: Whether it is possible to connect an external antenna to the Acer 5G router Predator Connect X5 5G CPE? And 2 question is: Is it possible to pop this modem Acer 5G router Predator Connect X5 5G CPE into bridge mode so that it just works as a modem? And question 3: Can you use it as a modem and at the same time as an access point with Wi-Fi6 and is it Unifi Compatible Dream Machine Pro SE? Were 2 questions in one Would appreciate an answer. 😊😊😊😊