There are 2 current methods, neither are perfect. Click on the hunters hut and it should highlight the rest of them on the map. Or select the professions tab and click on the magnifying glass beside hunters. This will allow you to scroll through each hunter, one at a time.
There currently is no means to scroll through a list of buildings of the same type, like used in the professions tab. It is a repeated ask by players though.
There is a mod “BuildingHelper” that provides these features. It’s very useful in late games with big towns
" This mod will add building count and two button to cycle through them on building menu (B).
And cycle through selected building with [ , ] and [ . ] key"
Start the game and load a save / continue to verify everything is OK then exit the game.
MelonLoader first launch should have created all the required sub directory in in the game binary directory (steam/stemapps/common/Farthest Frontier)
Then on nexus manual download the zip (you may need to register) containing the mod and unzip all the files into steam/steamapps/common/Farthest Frontier/Mods