To avoid searching for the server in the lobby every time you want to join, you can use the direct connection feature offered by BeamMP.

In the main area where the server is started, the server's IP address and port are displayed. These are fixed and do not change. You can share this information with your friends so they can join directly.

In the top right corner, you'll find a red button that contains the IP followed by the port. By clicking on it, the information is copied directly to your clipboard. See the image below for reference: