Do not show menu item for non-dps graphs

gui/builtinContextMenus/graphFitAmmoPicker.py

@@ -1,20 +1,40 @@
+# noinspection PyPackageRequirements
+import wx
+
+import gui.mainFrame
 from gui.contextMenu import ContextMenuSingle
 
 
 class GraphFitAmmoPicker(ContextMenuSingle):
 
+    def __init__(self):
+        self.mainFrame = gui.mainFrame.MainFrame.getInstance()
+
     def display(self, callingWindow, srcContext, mainItem):
         if srcContext != 'graphFitList':
             return False
         if mainItem is None or not mainItem.isFit:
             return False
+        if callingWindow.graphFrame.getView().internalName != 'dmgStatsGraph':
+            return False
         return True
 
     def getText(self, callingWindow, itmContext, mainItem):
-        return 'Duplicate Fit with Ammo...'
+        return 'Plot with Different Ammo...'
 
     def activate(self, callingWindow, fullContext, mainItem, i):
-        pass
+        with AmmoPicker(self.mainFrame) as dlg:
+            if dlg.ShowModal() == wx.ID_OK:
+                pass
+            else:
+                pass
 
 
 GraphFitAmmoPicker.register()
+
+
+class AmmoPicker(wx.Dialog):
+
+    def __init__(self, parent):
+        super().__init__(parent, title='Choose Different Ammo', style=wx.DEFAULT_DIALOG_STYLE)
+        self.SetMinSize((346, 156))