diff --git a/docs/definitions.md b/docs/definitions.md
index 2d2cdca..3aeca4f 100644
--- a/docs/definitions.md
+++ b/docs/definitions.md
@@ -74,6 +74,7 @@ The __YAML__ structure follow the given hierarchy:
                1. type: Name of the domain class
                2. name: (optional) identifier when we don't want to use its `type` as identifier.
                3. **: additional parameters specific to domain type expectation.
+         2. proxyType: Name of proxy used in proxy lists
 
 # Domain definitions
 
diff --git a/setup.cfg b/setup.cfg
index 24428d7..be49d40 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -1,5 +1,5 @@
 [metadata]
-name = trame-simput
+name = trame_simput
 version = 2.5.0
 description = Simput implementation for trame
 long_description = file: README.rst
diff --git a/trame_simput/__init__.py b/trame_simput/__init__.py
index 8cf4890..37bba74 100644
--- a/trame_simput/__init__.py
+++ b/trame_simput/__init__.py
@@ -2,7 +2,7 @@
 
 from .core import get_simput_manager
 
-__version__ = get_version("trame-simput")
+__version__ = get_version("trame_simput")
 
 __all__ = [
     "__version__",
diff --git a/trame_simput/core/proxy.py b/trame_simput/core/proxy.py
index c34ddfd..67d975d 100644
--- a/trame_simput/core/proxy.py
+++ b/trame_simput/core/proxy.py
@@ -95,11 +95,20 @@ def __init__(
             if _prop_name.startswith("_"):
                 continue
 
+            _size = _prop_def.get("size", None)
+            _positive_size = _size is not None and isinstance(_size, int) and _size > 0
             _init_def = _prop_def.get("initial", None)
+            _is_proxy = _prop_def.get("type", None) == "proxy"
+            _proxy_type = _prop_def.get("proxyType", None)
             if _prop_name in kwargs:
                 self.set_property(_prop_name, kwargs[_prop_name])
             elif isinstance(_init_def, dict):
                 logger.error("Don't know how to deal with domain yet: %s", _init_def)
+            elif _positive_size and _is_proxy and _proxy_type is not None:
+                _init_def = [
+                    self._proxy_manager.create(_proxy_type).id for _ in range(_size)
+                ]
+                self.set_property(_prop_name, _init_def)
             else:
                 self.set_property(_prop_name, _init_def)
 
@@ -705,6 +714,7 @@ def delete(self, proxy_id, trigger_modified=True):
         before_delete = set(self._id_map.keys())
         # Delete ourself
         proxy_to_delete: Proxy = self._id_map[proxy_id]
+        self.clean_proxy_domains(proxy_to_delete.id)
         del self._id_map[proxy_id]
 
         for tag in proxy_to_delete.tags:
diff --git a/trame_simput/core/ui/resolvers/vuetify.py b/trame_simput/core/ui/resolvers/vuetify.py
index 6678fe0..36f8f9a 100644
--- a/trame_simput/core/ui/resolvers/vuetify.py
+++ b/trame_simput/core/ui/resolvers/vuetify.py
@@ -39,7 +39,7 @@ def __init__(self):
 
     def get_widget(self, elem):
         model = self._model.get(elem.get("name"), {})
-        attributes = {key: model[key] for key in model if not key.startswith("_")}
+        attributes = {}
         if elem.tag in VUETIFY_MAP:
             return VUETIFY_MAP[elem.tag], attributes
         elif elem.tag == "input":
@@ -80,6 +80,10 @@ def get_widget(self, elem):
             if self._model.get(elem.get("name"), {}).get("type", "string") == "bool":
                 widget = "sw-switch"
 
+            proxy_type = model.get("proxyType", None)
+            if proxy_type is not None:
+                attributes["proxyType"] = proxy_type
+
             return widget, attributes
         elif elem.tag == "proxy":
             return "sw-proxy", attributes
diff --git a/vue2-components/src/widgets/Proxy/script.js b/vue2-components/src/widgets/Proxy/script.js
index 8f821ae..1e8e7c9 100644
--- a/vue2-components/src/widgets/Proxy/script.js
+++ b/vue2-components/src/widgets/Proxy/script.js
@@ -76,8 +76,10 @@ export default {
       return getComponentProps(this.computedLayout, index);
     },
     deleteEntry(index) {
-      this.model.splice(index, 1);
-      this.dirty(this.name);
+      if (this.computedSize > Number(this.size)) {
+        this.model.splice(index, 1);
+        this.dirty(this.name);
+      }
     },
   },
   inject: ['data', 'properties', 'domains', 'dirty'],
diff --git a/vue2-components/src/widgets/TextField/script.js b/vue2-components/src/widgets/TextField/script.js
index 4825cf9..08d374b 100644
--- a/vue2-components/src/widgets/TextField/script.js
+++ b/vue2-components/src/widgets/TextField/script.js
@@ -146,8 +146,6 @@ export default {
       if (!this.model) {
         this.model = [];
       }
-      this.dynamicSize = this.model.length + 1;
-      this.model.length = this.dynamicSize;
       if (this.type == 'proxy') {
         this.getSimput()
           .wsClient.getConnection()
@@ -158,16 +156,19 @@ export default {
           ])
           .then((proxy_id) => {
             if (proxy_id != undefined) {
-              this.model[this.dynamicSize - 1] = proxy_id;
-              this.validate(this.dynamicSize);
+              this.model.push(proxy_id);
+              this.dirty(this.name);
             }
+            this.dynamicSize = this.model.length;
+            this.validate(this.dynamicSize);
           });
       } else {
         if (this.newValue === 'null') {
-          this.model[this.dynamicSize - 1] = null;
+          this.model.push(null);
         } else if (this.newValue === 'same') {
-          this.model[this.dynamicSize - 1] = this.model[this.dynamicSize - 2];
+          this.model.push(this.model[this.model.length - 2]);
         }
+        this.dynamicSize = this.model.length;
         this.validate(this.dynamicSize);
       }
     },