How to connect several device to Raspberry Pi by LoRa whit Rak2287

Hi everybody,
I want to connect several devices to Raspberry Pi by RAK2287 with LoRa. However, there is an issue I need to read and send data to the devices at the same time, imagine the getaway is Raspberry Pi that the rack2287 is connected to its. On another side, there are 35 end-node, and there are several sensors and actuators connected to each node. Now I want to control the nodes on the Getaway at the same time by the multichannel feature of RAK2287. so what should I do? can I use the ChrioStack server? how to?