diff --git a/Data-model.md b/Data-model.md
index 343daa6..2934f70 100644
--- a/Data-model.md
+++ b/Data-model.md
@@ -234,11 +234,11 @@ Markers data is stored as an unordered array of objects (so element id is _not_
 * `fill`: `string` - marker pin fill color. Optional, default is `#fff` (white)
 * `stroke`: `string` - marker pin stroke color. Optional, default is `#000` (black)
 * `pin`: `string`: pin element type. Optional, default is `bubble`. Pin is not rendered if value is set to `no`
-* `hidden`: `boolean`: `true` if marker should not be rendered. Optional, default is `false` (visible)
+* `pinned`: `boolean`: if any marker is pinned, then only markers with `pinned = true` will be rendered. Optional
 * `dx`: `number` - icon x shift percent. Optional, default is `50` (50%, center)
 * `dy`: `number` - icon y shift percent. Optional, default s `50` (50%, center)
 * `px`: `number` - icon font-size in pixels. Optional, default is `12` (12px)
-* `lock`: `boolean` - `true` if marker is locked (not affected by regeneration). Optional, default is `false`
+* `lock`: `boolean` - `true` if marker is locked (not affected by regeneration). Optional
 
 ## Routes
 Routes data is not in data model, but can be retrieved directly from svg `routes` element and `pack.cells.roads` array.