_sidebar.md

 ### [29ID Home](home)
 
 - [Beamline operation](/Beamline-operation)
+    - [diagnostics](Beamline-operation/Diagnostics)
 - [ARPES Endstation](ARPES)
 - [RSXS Endstation](RSXS)
     - [PI Motors](/RSXS/Kappa-Diffractometer/PI-Motors)