beacon, HM-10 module, is it possible to connect three ble? using AT+CONN

I have three questions

Q1. I want to use AT+CONN, but it is important to connect what is CONN0
like....I want to connect CONN0 -> Slave1, CONN1-> Slave2
is it possible?

Q2. If Q1 possible, can I get rssi using AT+RSSI? (CONN0 -> AT+RSSI, CONN1-> AT+RSSI)

Q3. If I use AT+DISI in arduino sketch in coding, AT+DISI results cut....(i don't know why)

BT.write("AT+DISI?");