User-manual.md

@@ -14,6 +14,8 @@ In snap mode, scattering vectors position is restrained to a discrete set of poi
 
 The adaptive grid means that the grid adapts the number of subdivision depending on the zoom level.  **Beware the grid adaptation only works under 2D view (Reciprocal View 3D > Toggle 2D View)**
 
+<img src="/uploads/98264dffa994a9a63e06a2199f9ec31f/zoom1.png"  width="200" height="200"><img src="/uploads/7ee86506b4d11c239aba41b93594e1b2/zoom2.png"  width="200" height="200"><img src="/uploads/eddaeb560bb1c9c1579fed2c3f31d234/zoom3.png"  width="200" height="200">
+
 ### Free mode
 
 In snap mode, scattering vectors position is not restrained to a set of points. However, scattering vector norm can be fixed in the scattering parameters panel (Panels > Show Scattering Parameters). When a norm is fixed, scattering vectors can only move in positions that respect theses constraints.
@@ -32,3 +34,14 @@ In the same way, you can define multiple trajectories by following the same step
 
 #### Export to nomad
 To exports all trajectories into a XBU file readable by Nomad, click on "Export to nomad" button on the trajectory panel (Panels > Show Trajectory). It will create a XBU file named vEXP.xbu under the user's XBU path.
+
+Customize experiment parameters
+---
+
+#### Sample parameters
+
+Sample parameters can be changed using the sample panel (Panels > Show sample). Then edit wanted inputs.
+
+#### Scattering plane
+
+Scattering plane can be moved using the scattering plane panel (Panels > Show Scattering plane). Then edit wanted inputs, it will update the plane representation on the reciprocal view. 
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