diff --git a/src/Model/InitialConditions/InitialConditions.py b/src/Model/InitialConditions/InitialConditions.py
index f598ade0..d00f9453 100644
--- a/src/Model/InitialConditions/InitialConditions.py
+++ b/src/Model/InitialConditions/InitialConditions.py
@@ -196,7 +196,7 @@ class InitialConditions(object):
                 key = lambda p: p.kp
             )
 
-    def generate_growing_constante_draft(self, draft:int):
+    def generate_growing_constante_draft(self, draft:float):
         self._data = []
 
         profiles = self._reach.reach.profiles
diff --git a/src/View/ASubWindow.py b/src/View/ASubWindow.py
index 61a77987..6091c6de 100644
--- a/src/View/ASubWindow.py
+++ b/src/View/ASubWindow.py
@@ -388,10 +388,11 @@ class ASubMainWindow(QMainWindow, ASubWindowFeatures, WindowToolKit):
         )
         self.name = name
         self.parent = parent
-        self.parent.sub_win_add(name, self)
+        if self.parent is not None:
+            self.parent.sub_win_add(name, self)
 
     def closeEvent(self, event):
-        if not self.parent is None:
+        if self.parent is not None:
             self.parent.sub_win_del(self.name)
 
     def find(self, qtype, name):
@@ -418,10 +419,11 @@ class ASubWindow(QDialog, ASubWindowFeatures, WindowToolKit):
         )
         self.name = name
         self.parent = parent
-        self.parent.sub_win_add(name, self)
+        if self.parent is not None:
+            self.parent.sub_win_add(name, self)
 
     def closeEvent(self, event):
-        if not self.parent is None:
+        if self.parent is not None:
             self.parent.sub_win_del(self.name)
 
     def find(self, qtype, name):
diff --git a/src/View/InitialConditions/DialogDraft.py b/src/View/InitialConditions/DialogDraft.py
new file mode 100644
index 00000000..6e9259c4
--- /dev/null
+++ b/src/View/InitialConditions/DialogDraft.py
@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*-
+
+from View.ASubWindow import ASubWindow
+from View.ListedSubWindow import ListedSubWindow
+
+from PyQt5.QtGui import (
+    QKeySequence,
+)
+
+from PyQt5.QtCore import (
+    Qt, QVariant, QAbstractTableModel,
+)
+
+from PyQt5.QtWidgets import (
+    QDialogButtonBox, QComboBox, QUndoStack, QShortcut,
+    QDoubleSpinBox,
+)
+
+class DraftDialog(ASubWindow, ListedSubWindow):
+    def __init__(self, title="Draft", parent=None):
+        super(DraftDialog, self).__init__(
+            name=title, ui="InitialConditions_Dialog_Generator_Draft", parent=parent
+        )
+
+        self.value = None
+
+    def accept(self):
+        self.value = self.find(QDoubleSpinBox, "doubleSpinBox").value()
+        super().accept()
+
+    def reject(self):
+        self.close()
diff --git a/src/View/InitialConditions/Window.py b/src/View/InitialConditions/Window.py
index 7a8fdd02..46df785d 100644
--- a/src/View/InitialConditions/Window.py
+++ b/src/View/InitialConditions/Window.py
@@ -34,6 +34,7 @@ from View.Plot.MplCanvas import MplCanvas
 from View.InitialConditions.PlotDKP import PlotDKP
 from View.InitialConditions.PlotFlow import PlotFlow
 from View.InitialConditions.translate import *
+from View.InitialConditions.DialogDraft import DraftDialog
 
 _translate = QCoreApplication.translate
 
@@ -207,5 +208,8 @@ class InitialConditionsWindow(ASubMainWindow, ListedSubWindow):
         self._update_plot()
 
     def generate_growing_constante_draft(self):
-        self._table.generate("growing", 1)
-        self._update_plot()
+        dlg = DraftDialog(parent=self)
+        if dlg.exec():
+            value = dlg.value
+            self._table.generate("growing", value)
+            self._update_plot()
diff --git a/src/View/ui/InitialConditions_Dialog_Generator_Draft.ui b/src/View/ui/InitialConditions_Dialog_Generator_Draft.ui
new file mode 100644
index 00000000..d99ceaad
--- /dev/null
+++ b/src/View/ui/InitialConditions_Dialog_Generator_Draft.ui
@@ -0,0 +1,81 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>Dialog</class>
+ <widget class="QDialog" name="Dialog">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>194</width>
+    <height>80</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Dialog</string>
+  </property>
+  <property name="locale">
+   <locale language="English" country="Europe"/>
+  </property>
+  <layout class="QGridLayout" name="gridLayout">
+   <item row="0" column="0">
+    <layout class="QHBoxLayout" name="horizontalLayout">
+     <item>
+      <widget class="QLabel" name="label">
+       <property name="text">
+        <string>Draft</string>
+       </property>
+      </widget>
+     </item>
+     <item>
+      <widget class="QDoubleSpinBox" name="doubleSpinBox"/>
+     </item>
+    </layout>
+   </item>
+   <item row="1" column="0">
+    <widget class="QDialogButtonBox" name="buttonBox">
+     <property name="orientation">
+      <enum>Qt::Horizontal</enum>
+     </property>
+     <property name="standardButtons">
+      <set>QDialogButtonBox::Cancel|QDialogButtonBox::Ok</set>
+     </property>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>accepted()</signal>
+   <receiver>Dialog</receiver>
+   <slot>accept()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>248</x>
+     <y>254</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>157</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+  <connection>
+   <sender>buttonBox</sender>
+   <signal>rejected()</signal>
+   <receiver>Dialog</receiver>
+   <slot>reject()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>316</x>
+     <y>260</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>286</x>
+     <y>274</y>
+    </hint>
+   </hints>
+  </connection>
+ </connections>
+</ui>