diff --git a/src/Mod/Fem/FemTools.py b/src/Mod/Fem/FemTools.py
index 0fdaba9788..1458f7c867 100644
--- a/src/Mod/Fem/FemTools.py
+++ b/src/Mod/Fem/FemTools.py
@@ -367,10 +367,10 @@ class FemTools(QtCore.QRunnable, QtCore.QObject):
             _number = number
         else:
             try:
-                _number = self.solver.NumberOfEigenmodes
+                _number = self.solver.EigenmodesCount
             except:
                 #Not yet in prefs, so it will always default to 10
-                _number = self.fem_prefs.GetInteger("NumberOfEigenmodes", 10)
+                _number = self.fem_prefs.GetInteger("EigenmodesCount", 10)
         if _number < 1:
             _number = 1
 
diff --git a/src/Mod/Fem/Gui/DlgSettingsFemCcx.ui b/src/Mod/Fem/Gui/DlgSettingsFemCcx.ui
index d1e56ed8b2..d95b255dc7 100644
--- a/src/Mod/Fem/Gui/DlgSettingsFemCcx.ui
+++ b/src/Mod/Fem/Gui/DlgSettingsFemCcx.ui
@@ -426,7 +426,7 @@
              <double>0.010000000000000</double>
             </property>
             <property name="prefEntry" stdset="0">
-             <cstring>AnalysisInitialTimeStep</cstring>
+             <cstring>AnalysisTimeInitialStep</cstring>
             </property>
             <property name="prefPath" stdset="0">
              <cstring>Mod/Fem/Ccx</cstring>
@@ -492,7 +492,7 @@
              <number>10</number>
             </property>
             <property name="prefEntry" stdset="0">
-             <cstring>NumberOfEigenmode</cstring>
+             <cstring>EigenmodesCount</cstring>
             </property>
             <property name="prefPath" stdset="0">
              <cstring>Mod/Fem/Ccx</cstring>
diff --git a/src/Mod/Fem/_FemSolverCalculix.py b/src/Mod/Fem/_FemSolverCalculix.py
index 37ba7275cc..8ad1f9e3dc 100644
--- a/src/Mod/Fem/_FemSolverCalculix.py
+++ b/src/Mod/Fem/_FemSolverCalculix.py
@@ -60,9 +60,9 @@ class _FemSolverCalculix():
         else:
             obj.GeometricalNonlinearity = known_geom_nonlinear_types[0]  # linear
 
-        obj.addProperty("App::PropertyIntegerConstraint", "NumberOfEigenmodes", "Fem", "Number of modes for frequency calculations")
-        noe = ccx_prefs.GetInt("NumberOfEigenmodes", 10)
-        obj.NumberOfEigenmodes = (noe, 1, 100, 1)
+        obj.addProperty("App::PropertyIntegerConstraint", "EigenmodesCount", "Fem", "Number of modes for frequency calculations")
+        noe = ccx_prefs.GetInt("EigenmodesCount", 10)
+        obj.EigenmodesCount = (noe, 1, 100, 1)
 
         obj.addProperty("App::PropertyFloatConstraint", "EigenmodeLowLimit", "Fem", "Low frequency limit for eigenmode calculations")
         # Not yet in prefs, so it will always default to 0.0
@@ -73,21 +73,21 @@ class _FemSolverCalculix():
         ehl = ccx_prefs.GetFloat("EigenmodeHighLimit", 1000000.0)
         obj.EigenmodeHighLimit = (ehl, 0.0, 1000000.0, 10000.0)
 
-        obj.addProperty("App::PropertyIntegerConstraint", "Maxiterations", "Fem", "Number of iterations allowed before stopping jobs")
+        obj.addProperty("App::PropertyIntegerConstraint", "IterationsMaximum", "Fem", "Number of iterations allowed before stopping jobs")
         niter = ccx_prefs.GetInt("AnalysisMaxIterations", 200)
-        obj.Maxiterations = (niter)
+        obj.IterationsMaximum = niter
 
-        obj.addProperty("App::PropertyFloatConstraint", "InitialTimeStep", "Fem", "Initial time steps")
-        ini = ccx_prefs.GetFloat("AnalysisInitialTimeStep", 1.0)
-        obj.InitialTimeStep = (ini)
+        obj.addProperty("App::PropertyFloatConstraint", "TimeInitialStep", "Fem", "Initial time steps")
+        ini = ccx_prefs.GetFloat("AnalysisTimeInitialStep", 1.0)
+        obj.TimeInitialStep = ini
 
-        obj.addProperty("App::PropertyFloatConstraint", "EndTime", "Fem", "Initial time steps")
+        obj.addProperty("App::PropertyFloatConstraint", "TimeEnd", "Fem", "End time analysis")
         eni = ccx_prefs.GetFloat("AnalysisTime", 1.0)
-        obj.EndTime = (eni)
+        obj.TimeEnd = eni
 
         obj.addProperty("App::PropertyBool", "SteadyState", "Fem", "Run steady state or transient analysis")
         sted = ccx_prefs.GetBool("StaticAnalysis", True)
-        obj.SteadyState = (sted)
+        obj.SteadyState = sted
 
         obj.addProperty("App::PropertyBool", "IterationsControlParameterTimeUse", "Fem", "Use the user defined time incrementation control parameter")
         use_non_ccx_iterations_param = ccx_prefs.GetInt("UseNonCcxIterationParam", False)