diff --git a/GUI/Model/Descriptor/AxisProperty.cpp b/GUI/Model/Descriptor/AxisProperty.cpp
index 78e8aa3419546d98fe8fc4257b3a8adff69e84e5..594d48733b9e846ee2d845fb40212cc0deeb1e74 100644
--- a/GUI/Model/Descriptor/AxisProperty.cpp
+++ b/GUI/Model/Descriptor/AxisProperty.cpp
@@ -54,3 +54,13 @@ void AxisProperty::rwAxisProperty(Streamer& s, const QString& tag)
     Serialize::rwProperty(s, m_max);
     s.finish(tag);
 }
+
+uint AxisProperty::NEW_nbins() const
+{
+    return m_nbins_NEW;
+}
+
+void AxisProperty::NEW_setNbins(uint value)
+{
+    m_nbins_NEW = value;
+}
diff --git a/GUI/Model/Descriptor/AxisProperty.h b/GUI/Model/Descriptor/AxisProperty.h
index d683b6b2d3f3624d2728962b3f164d24cd4f4616..8318c963d9ca2aa29a004125ea7f497a94d80e32 100644
--- a/GUI/Model/Descriptor/AxisProperty.h
+++ b/GUI/Model/Descriptor/AxisProperty.h
@@ -57,6 +57,12 @@ public:
     std::unique_ptr<FixedBinAxis> createAxis(double scaleFactor) const;
 
     void rwAxisProperty(Streamer& s, const QString& tag);
+
+    uint NEW_nbins() const;
+    void NEW_setNbins(uint value);
+
+private:
+    uint m_nbins_NEW = 100;
 };
 
 // clang-format off
diff --git a/GUI/View/Instrument/AxisPropertyEditor.cpp b/GUI/View/Instrument/AxisPropertyEditor.cpp
index 89fcc8d8580bc17bedf0d082871a6a480a317509..f59136680e45080957f539e16fbcd8e809cb8aef 100644
--- a/GUI/View/Instrument/AxisPropertyEditor.cpp
+++ b/GUI/View/Instrument/AxisPropertyEditor.cpp
@@ -22,7 +22,8 @@
 #include <QSpinBox>
 
 AxisPropertyEditor::AxisPropertyEditor(QWidget* parent, const QString& groupTitle,
-                                       AxisProperty* axisProperty)
+                                       AxisProperty* axisProperty, QString nbinsTooltip,
+                                       QString minTooltip, QString maxTooltip)
     : QGroupBox(groupTitle, parent)
     , m_axisProperty(axisProperty)
 {
@@ -30,7 +31,12 @@ AxisPropertyEditor::AxisPropertyEditor(QWidget* parent, const QString& groupTitl
     auto* formLayout = new QFormLayout(this);
     formLayout->setFieldGrowthPolicy(QFormLayout::FieldsStayAtSizeHint);
 
-    m_nbinsSpinBox = GUI::Util::createSpinBoxRow(formLayout, axisProperty->nbins());
+    m_nbinsSpinBox = GUI::Util::createIntSpinbox([=] { return axisProperty->NEW_nbins(); },
+                                [=](int v) { axisProperty->NEW_setNbins(static_cast<uint>(v)); }, nullptr /*updaters*/,
+                                nbinsTooltip, RealLimits::nonnegative());
+    formLayout->addRow(GUI::Util::labelWithUnit("Nbins", "nbins") + ":", m_nbinsSpinBox);
+
+
     m_minSpinBox = GUI::Util::createDoubleSpinBoxRow(formLayout, axisProperty->min());
     m_maxSpinBox = GUI::Util::createDoubleSpinBoxRow(formLayout, axisProperty->max());
 
diff --git a/GUI/View/Instrument/AxisPropertyEditor.h b/GUI/View/Instrument/AxisPropertyEditor.h
index 83c91c3902dda7371bee819a828ed0302254045d..ca3dbcc07e87ceeb2703be3f04d187dd3283ec23 100644
--- a/GUI/View/Instrument/AxisPropertyEditor.h
+++ b/GUI/View/Instrument/AxisPropertyEditor.h
@@ -29,7 +29,8 @@ class DoubleSpinBox;
 class AxisPropertyEditor : public QGroupBox {
     Q_OBJECT
 public:
-    AxisPropertyEditor(QWidget* parent, const QString& groupTitle, AxisProperty* axisProperty);
+    AxisPropertyEditor(QWidget* parent, const QString& groupTitle, AxisProperty* axisProperty,
+                       QString nbinsTooltip = "", QString minTooltip = "", QString maxTooltip = "");
 
     //! Reload UI from data
     void updateData();
diff --git a/GUI/View/Instrument/DepthProbeInstrumentEditor.cpp b/GUI/View/Instrument/DepthProbeInstrumentEditor.cpp
index 0ac9b50f0b554edfb3af59c696386e8779de2018..c5201ff15dc9bbcf66959a3aeb54d104dfec251a 100644
--- a/GUI/View/Instrument/DepthProbeInstrumentEditor.cpp
+++ b/GUI/View/Instrument/DepthProbeInstrumentEditor.cpp
@@ -46,7 +46,10 @@ DepthProbeInstrumentEditor::DepthProbeInstrumentEditor(QWidget* parent,
         new InclinationAnglesEditor(this, instrument->beamItem()->inclinationAngleItem());
     vLayout->addWidget(inclinationEditor);
 
-    auto* depthAxisEditor = new AxisPropertyEditor(this, "Depth axis", &instrument->zAxis());
+    auto* depthAxisEditor = new AxisPropertyEditor(this, "Depth axis", &instrument->zAxis(),
+                                                   "Number of points in scan across sample bulk",
+                                                   "Starting value below sample horizon",
+                                                   "Ending value above sample horizon");
     vLayout->addWidget(depthAxisEditor);
 
     GroupBoxCollapser::installIntoGroupBox(parametersGroupBox);
diff --git a/GUI/View/Instrument/OffspecBeamEditor.cpp b/GUI/View/Instrument/OffspecBeamEditor.cpp
index c51581854ecbe7916655d119982c6d865926253b..dda9aec60e82a60f4424c298d28f9c5f347b86ab 100644
--- a/GUI/View/Instrument/OffspecBeamEditor.cpp
+++ b/GUI/View/Instrument/OffspecBeamEditor.cpp
@@ -49,7 +49,10 @@ OffspecBeamEditor::OffspecBeamEditor(QWidget* parent, OffspecInstrumentItem* ite
                                item->beamItem()->wavelengthItem());
     vLayout->addWidget(wavelengthEditor);
 
-    auto* inclinationEditor = new AxisPropertyEditor(this, "Inclination angle", &item->alphaAxis());
+    auto* inclinationEditor = new AxisPropertyEditor(this, "Inclination angle", &item->alphaAxis(),
+                                                     "Number of points in scan",
+                                                     "Starting value",
+                                                     "Ending value");
     vLayout->addWidget(inclinationEditor);
 
     auto* azimuthalEditor =
diff --git a/GUI/View/Instrument/SphericalDetectorEditor.cpp b/GUI/View/Instrument/SphericalDetectorEditor.cpp
index 1d8df1ab4f945ca6dc0525eb4a2395358cca5656..9438763c0ca17e9503b8079aee47cc89828868a8 100644
--- a/GUI/View/Instrument/SphericalDetectorEditor.cpp
+++ b/GUI/View/Instrument/SphericalDetectorEditor.cpp
@@ -27,10 +27,16 @@ SphericalDetectorEditor::SphericalDetectorEditor(QWidget* parent, SphericalDetec
     grid->setColumnStretch(1, 1);
     grid->setColumnStretch(2, 1);
 
-    auto* phiAxisEditor = new AxisPropertyEditor(this, u8"\u03c6 axis", &item->phiAxis());
+    auto* phiAxisEditor = new AxisPropertyEditor(this, u8"\u03c6 axis", &item->phiAxis(),
+                                                 "Number of phi-axis bins",
+                                                 "Lower edge of first phi-bin",
+                                                 "Upper edge of last phi-bin");
     grid->addWidget(phiAxisEditor, 1, 0);
 
-    auto* alphaAxisEditor = new AxisPropertyEditor(this, u8"\u03b1 axis", &item->alphaAxis());
+    auto* alphaAxisEditor = new AxisPropertyEditor(this, u8"\u03b1 axis", &item->alphaAxis(),
+                                                   "Number of alpha-axis bins",
+                                                   "Lower edge of first alpha-bin",
+                                                   "Upper edge of last alpha-bin");
     grid->addWidget(alphaAxisEditor, 1, 1);
 
     auto* resolutionFunctionEditor =