Unsure how to use plugin

The documentation doesn't have anything for permissions or commands. The example lang file shows there may be responses to entered commands: "SuccessAdd": "You have successfully added the prefab {0}", But how would I go about adding something in a way that gives me a success message?

I manually added these into my /config json:

{
  "Entities that are denied from spawning (cant spawn, long prefab names accepted)": [
    "assets/bundled/prefabs/autospawn/decor/v2_rockformation_underwater/rock_formation_b_underwater.prefab",
    "assets/bundled/prefabs/autospawn/decor/v2_rockformation_underwater/rock_formation_c_underwater.prefab",
    "assets/bundled/prefabs/autospawn/decor/v2_rockformation_underwater/rock_formation_d_underwater.prefab",
    "assets/bundled/prefabs/autospawn/decor/v2_rockformation_underwater/rock_formation_e_underwater.prefab",
    "assets/bundled/prefabs/autospawn/decor/v2_rockformation_underwater/rock_formation_f_underwater.prefab",
    "assets/content/properties/spawnpopulation/junkpiles_water.asset",
    "assets/content/props/water_drums/water_drum_a.prefab",
    "assets/content/props/water_drums/water_drum_a_junk.prefab",
    "assets/content/props/water_drums/water_drum_toxic.prefab",
    "assets/prefabs/misc/junkpile_water/junkpile_water_a.prefab",
    "assets/prefabs/misc/junkpile_water/junkpile_water_b.prefab",
    "assets/prefabs/misc/junkpile_water/junkpile_water_c.prefab",
    "assets/content/props/water_junk_piles/water_junk_pile_a.prefab",
    "assets/content/props/water_junk_piles/water_junk_pile_a_no_planks.prefab",
    "assets/content/props/water_junk_piles/water_junk_pile_b.prefab",
    "assets/content/props/water_junk_piles/water_junk_pile_b_no_planks.prefab",
    "assets/content/props/water_junk_piles/water_junk_pile_c_no_planks.prefab",
    "assets/content/nature/underwater_plants/coral_red_big.prefab",
    "assets/content/nature/underwater_plants/coral_red_small.prefab",
    "assets/content/nature/underwater_plants/coral_white_big.prefab",
    "assets/content/nature/underwater_plants/coral_white_small.prefab",
    "assets/content/nature/underwater_plants/tall_algae_a.prefab",
    "assets/content/nature/underwater_plants/tall_algae_b.prefab",
    "assets/content/nature/underwater_plants/thin_algae.prefab",
    "assets/content/nature/underwater_plants/underwater_lilly.prefab",
    "assets/content/properties/foliage/all/underwater-coral_red_big.asset",
    "assets/content/properties/foliage/all/underwater-coral_red_small.asset",
    "assets/content/properties/foliage/all/underwater-coral_white_big.asset",
    "assets/content/properties/foliage/all/underwater-coral_white_small.asset",
    "assets/content/properties/foliage/all/underwater-tall_algae_a.asset",
    "assets/content/properties/foliage/all/underwater-tall_algae_b.asset",
    "assets/content/properties/foliage/all/underwater-thick_algae.asset",
    "assets/content/properties/foliage/all/underwater-thin_algae.asset",
    "assets/content/properties/foliage/all/underwater-underwater_lilly.asset",
    "assets/content/props/water_junk_piles/water_junk_pile_c.prefab"
  ]
}

I'm on a quest to block Floating Junk Piles and Advanced Underwater Crates. This mod, ComponentBlocker, EntityCleanup, nor Entity Reducer have worked so far. My monument doors are gone, but I hope that fixes itself after a map wipe with no blocker mods installed.

Thankful for any help

I added the console command to the documentation; not sure why it wasn't there. It looks like you are doing it right though, I'd just make sure the plugin is reloaded after your changes and that the configuration doesn't reset. If something isn't being removed, it may not be possible to remove.