Why this doesn't work?

[gleaming sandal]

  "custom_toggle_label": {
    "type": "custom",
    "renderer": "live_horse_renderer",
    "anchor_from": "center",
    "anchor_to": "center",
    "size": [
        24,
        24
    ],
    "offset": [
        0,
        -10
    ],
    "bindings": [
      {
        "binding_name": "#custom_text",
        "binding_type": "collection",
        "binding_collection_name": "custom_form"
      },
      {
        "binding_name": "#entity_id"
      },
      {
        "binding_type": "view",
        "source_property_name": "('%.11s' * #custom_text)",
        "target_property_name": "#entity_id"
      }
    ],
    "layer": 100
  }

it doesn't show the entity

[tribal girder]

I thought someone made a post where you couldn't get the id of entity to show in the form, so they use button text to put the id or something

[gleaming sandal]

ye that's what I did