diff --git a/invesalius/data/trackers.py b/invesalius/data/trackers.py
index fb1f862..e38e2bc 100644
--- a/invesalius/data/trackers.py
+++ b/invesalius/data/trackers.py
@@ -78,16 +78,23 @@ def OptitrackTracker(tracker_id):
     -------
     trck_init : local name for Optitrack module
     """
+    from wx import ID_OK
     trck_init = None
-    try:
-        import optitrack
-        trck_init = optitrack.optr()
-        if trck_init.Initialize()==0:
-            trck_init.Run() #Runs once Run function, to update cameras.
-        else:
-            trck_init = None
-    except ImportError:
-        print('Error')
+    dlg_port = dlg.SetOptitrackconfigs()
+    if dlg_port.ShowModal() == ID_OK:
+        Cal_optitrack, User_profile_optitrack = dlg_port.GetValue()
+        try:
+            import optitrack
+            trck_init = optitrack.optr()
+
+            if trck_init.Initialize(Cal_optitrack, User_profile_optitrack)==0:
+                trck_init.Run() #Runs once Run function, to update cameras.
+            else:
+                trck_init = None
+        except ImportError:
+            print('Error')
+    else:
+        print('#####')
     return trck_init, 'wrapper'
 
 def PolarisTracker(tracker_id):
diff --git a/invesalius/gui/dialogs.py b/invesalius/gui/dialogs.py
index bc4674e..5433c5c 100644
--- a/invesalius/gui/dialogs.py
+++ b/invesalius/gui/dialogs.py
@@ -4134,6 +4134,73 @@ class GoToDialogScannerCoord(wx.Dialog):
         wx.Dialog.Close(self)
         self.Destroy()
 
+class SetOptitrackconfigs(wx.Dialog):
+    def __init__(self, title=_("Setting Optitrack configs:")):
+        wx.Dialog.__init__(self, wx.GetApp().GetTopWindow(), -1, title, size=wx.Size(1000, 200),
+                           style=wx.DEFAULT_DIALOG_STYLE|wx.FRAME_FLOAT_ON_PARENT|wx.STAY_ON_TOP|wx.RESIZE_BORDER)
+        self._init_gui()
+
+    def _init_gui(self):
+        session = ses.Session()
+        last_optitrack_cal_dir = session.get('paths', 'last_optitrack_cal_dir', '')
+        last_optitrack_User_Profile_dir = session.get('paths', 'last_optitrack_User_Profile_dir', '')
+
+        if not last_optitrack_cal_dir:
+            last_optitrack_cal_dir = inv_paths.OPTITRACK_CAL_DIR
+        if not last_optitrack_User_Profile_dir:
+            last_optitrack_User_Profile_dir = inv_paths.OPTITRACK_USERPROFILE_DIR
+
+        self.dir_cal = wx.FilePickerCtrl(self, path=last_optitrack_cal_dir, style=wx.FLP_USE_TEXTCTRL | wx.FLP_SMALL,
+                                         wildcard="Cal files (*.cal)|*.cal", message="Select Calibration file")
+        row_cal = wx.BoxSizer(wx.VERTICAL)
+        row_cal.Add(wx.StaticText(self, wx.ID_ANY, "Select Calibration file"), 0, wx.TOP | wx.RIGHT, 5)
+        row_cal.Add(self.dir_cal, 0, wx.ALL | wx.CENTER | wx.EXPAND)
+
+        self.dir_UserProfile = wx.FilePickerCtrl(self, path=last_optitrack_User_Profile_dir, style=wx.FLP_USE_TEXTCTRL | wx.FLP_SMALL,
+                                         wildcard="User Profile files (*.motive)|*.motive", message="Select User Profile file")
+
+        row_userprofile = wx.BoxSizer(wx.VERTICAL)
+        row_userprofile.Add(wx.StaticText(self, wx.ID_ANY, "Select User Profile file"), 0, wx.TOP | wx.RIGHT, 5)
+        row_userprofile.Add(self.dir_UserProfile, 0, wx.ALL | wx.CENTER | wx.EXPAND)
+
+        btn_ok = wx.Button(self, wx.ID_OK)
+        btn_ok.SetHelpText("")
+        btn_ok.SetDefault()
+
+        btn_cancel = wx.Button(self, wx.ID_CANCEL)
+        btn_cancel.SetHelpText("")
+
+        btnsizer = wx.StdDialogButtonSizer()
+        btnsizer.AddButton(btn_ok)
+        btnsizer.AddButton(btn_cancel)
+        btnsizer.Realize()
+
+        main_sizer = wx.BoxSizer(wx.VERTICAL)
+
+        main_sizer.Add((5, 5))
+        main_sizer.Add(row_cal, 1, wx.EXPAND | wx.LEFT | wx.RIGHT, 5)
+        main_sizer.Add((5, 5))
+        main_sizer.Add(row_userprofile, 1, wx.EXPAND | wx.LEFT | wx.RIGHT, 5)
+        main_sizer.Add((15, 15))
+        main_sizer.Add(btnsizer, 0, wx.EXPAND)
+        main_sizer.Add((5, 5))
+
+        self.SetSizer(main_sizer)
+        main_sizer.Fit(self)
+
+        self.CenterOnParent()
+
+    def GetValue(self):
+        fn_cal = self.dir_cal.GetPath()
+        fn_userprofile = self.dir_UserProfile.GetPath()
+
+        if fn_cal and fn_userprofile:
+            session = ses.Session()
+            session['paths']['last_optitrack_cal_dir'] = self.dir_cal.GetPath()
+            session['paths']['last_optitrack_User_Profile_dir'] = self.dir_UserProfile.GetPath()
+            session.WriteSessionFile()
+
+        return fn_cal, fn_userprofile
 
 class SetNDIconfigs(wx.Dialog):
     def __init__(self, title=_("Setting NDI polaris configs:")):
diff --git a/invesalius/inv_paths.py b/invesalius/inv_paths.py
index c1376bb..d75b7c0 100644
--- a/invesalius/inv_paths.py
+++ b/invesalius/inv_paths.py
@@ -84,6 +84,8 @@ NDI_MAR_DIR_PROBE = str(INV_TOP_DIR.joinpath("navigation", "ndi_files", "Markers
 NDI_MAR_DIR_REF = str(INV_TOP_DIR.joinpath("navigation", "ndi_files", "Markers", "8700339.rom"))
 NDI_MAR_DIR_OBJ = str(INV_TOP_DIR.joinpath("navigation", "ndi_files", "Markers", "8700338.rom"))
 
+OPTITRACK_CAL_DIR = str(INV_TOP_DIR.joinpath("navigation", "optitrack_files", "Calibration.cal"))
+OPTITRACK_USERPROFILE_DIR = str(INV_TOP_DIR.joinpath("navigation", "optitrack_files", "UserProfile.motive"))
 # MAC App
 if not os.path.exists(ICON_DIR):
     ICON_DIR = INV_TOP_DIR.parent.parent.joinpath("icons").resolve()
--
libgit2 0.21.2