update user docs

Author: backmari

docs/images/final_rebin_button.png

@@ -40,28 +40,29 @@ The following options allow users to fine-tune binning behavior:
       **Entering the Bin Width**
 
 
-**Final Rebin** (Checkbox, Per-Run or Global)
-^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
+**Final Rebin** (Checkbox, Per-Run)
+^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
 
    - **What It Does:** Controls whether the final reduced workspace (converted to Q-space) undergoes additional rebinning.
    - **How It Works:**
 
      - When enabled, rebinning is performed using `Q Steps`, in units of 1/Å, as the bin width.
      - This option is **only available** if `Constant-Q Binning` is **disabled**.
      - If `Constant-Q Binning` is enabled, it **takes priority** over `Final Rebin`.
-     - If `Final Rebin` is enabled **per-run**, the `Q Steps` values can be viewed and updated in the reduction data table under the `Q-Steps` column. If it is enabled globally, it takes priority over any per-run `Q Steps` values.
+     - If `Final Rebin` is enabled for a run, the `Q Steps` values can be viewed and updated in the reduction data table under the `Q-Steps` column.
+     - The button `Enable final rebin for runs` enables final rebin with the same `Q Steps` value for all runs in the active reduction data table.
 
-   - **How to Use It:** Check this box if you want to apply final rebinning.
+   - **How to Use It:** Check this box if you want to apply final rebinning for the active run, or use the button to enable final rebin for all runs.
 
    .. figure::
-      ../images/final_rebin_global.png
-      :alt: Final Rebin Global
+      ../images/final_rebin_button.png
+      :alt: Enable Final Rebin for All Runs
 
-      **Enabling Final Rebin Globally**
+      **Enabling Final Rebin for All Runs in the Active Reduction Data Table**
 
    .. figure::
       ../images/final_rebin_per_run.png
-      :alt: Final Rebin Per-Run
+      :alt: Final Rebin Per-Run Checkbox
 
       **Enabling Final Rebin Per-Run**