LoRa32 V2.1_1.6 IPEX Connector use?

I have the LoRa32 V2.1_1.6 board that I want to use as a router for everyone in the town to pass traffic through. I want to use a better antenna and use the built in IPEX connector. The specs say “Support WiFi IPEX external antenna, but you need to jump resistance”

How do I do this? What resistance? I can’t seem to find any documentation on that…