I tried to make new mobs spawn in the structures, so I added then to the server config file if the mod like this:

 

[[spawns.desert_quarry]]
entity = "dungeons_mobs:mountaineer"
weight = 100
min = 1
max = 4

[[spawns.desert_quarry]]
entity = "hunterillager:hunterillager"
weight = 100
min = 1
max = 4

[[spawns.desert_quarry]]
entity = "savageandravage:skeleton_villager"
weight = 100
min = 1
max = 4

 

but when I checked (even in newly created worlds) I see no change, the config file still has all my additions, what am I doing wrong? is it even possible to add new mobs?