diff --git a/docs/src/SUMMARY.md b/docs/src/SUMMARY.md
index 507dc62b..42ead167 100644
--- a/docs/src/SUMMARY.md
+++ b/docs/src/SUMMARY.md
@@ -3,7 +3,7 @@
 
 - [Introduction](./Introduction/01-Introduction.md)
     - [How to Build](./Introduction/02-How-to-build.md)
-    - [How to Build](./Introduction/02-How-to-install.md)
+    - [How to Install](./Introduction/02-How-to-install.md)
     - [Getting Started](./Introduction/03-Getting-Started.md)
     - [How to use RAYX-UI](./Introduction/04-How-to-use-rayx-ui.md)
     - [RAYX Commands](./Introduction/05-How-to-use-rayx.md)
@@ -16,11 +16,13 @@
             - [Cone Mirror](./Model/BeamlineObjects/OpticalElements/Cone-Mirror.md)
             - [Cylinder Mirror](./Model/BeamlineObjects/OpticalElements/Cylinder-Mirror.md)
             - [Ellipsoid Mirror](./Model/BeamlineObjects/OpticalElements/Ellipsoid-Mirror.md)
+            - [Image Plane](./Model/BeamlineObjects/OpticalElements/Image-Plane.md)
             - [Paraboloid Mirror](./Model/BeamlineObjects/OpticalElements/Paraboloid-Mirror.md)
             - [Plane Mirror](./Model/BeamlineObjects/OpticalElements/Plane-Mirror.md)
             - [Plane Grating](./Model/BeamlineObjects/OpticalElements/Plane-Grating.md)
             - [Sphere Mirror](./Model/BeamlineObjects/OpticalElements/Sphere-Mirror.md)
             - [Sphere Grating](./Model/BeamlineObjects/OpticalElements/Sphere-Grating.md)
+            - [Slit](./Model/BeamlineObjects/OpticalElements/Slit.md)
             - [Toroid Mirror](./Model/BeamlineObjects/OpticalElements/Toroid-Mirror.md)
             - [Toroid Grating](./Model/BeamlineObjects/OpticalElements/Toroid-Grating.md)
             - [Reflection Zone Plate (RZP)](./Model/BeamlineObjects/OpticalElements/RZP.md)