diff --git a/src/fot/entitylist.rs b/src/fot/entitylist.rs
index b177fba..33e7d84 100644
--- a/src/fot/entitylist.rs
+++ b/src/fot/entitylist.rs
@@ -178,3 +178,12 @@ impl<'a> IntoIterator for &'a EntityList {
         (1..).zip(&self.ents)
     }
 }
+
+impl<'a> IntoIterator for &'a mut EntityList {
+    type Item = (usize, &'a mut Entity);
+    type IntoIter = std::iter::Zip<std::ops::RangeFrom<usize>, std::slice::IterMut<'a, Entity>>;
+
+    fn into_iter(self) -> Self::IntoIter {
+        (1..).zip(&mut self.ents)
+    }
+}
diff --git a/src/fot/world.rs b/src/fot/world.rs
index d17bcf6..ca8cc2d 100644
--- a/src/fot/world.rs
+++ b/src/fot/world.rs
@@ -32,6 +32,10 @@ impl World {
     pub fn test(&mut self) -> Result<(), FE> {
         //let actor_type = self.entlist.get_type_idx("Actor").unwrap();
         //let ent = self.entlist.get_entity_mut(2122);
+        for (id, ent) in &mut self.entlist {
+            ent.flags = 1;   
+        }
+
         let ent = self.entlist.get_entity_mut(2158);
         let esh = ent.get_esh()?;
         for (name, value) in &esh.props {