diff --git a/build.sh b/build.sh
index 477b662..c274486 100755
--- a/build.sh
+++ b/build.sh
@@ -4,7 +4,7 @@
 ####################################################################
 
 # update slides
-npx @marp-team/marp-cli docs/slides/innovation/innovation.md -o ./docs/slides/innovation/index.html
+npx @marp-team/marp-cli slides/innovation/innovation.md -o ./docs/slides/innovation/index.html
 
 ## Create regular mkdocs docs
 
@@ -27,7 +27,7 @@ license-checker --production --relativeLicensePath --direct --start ../dcfronten
 echo '```' >> docs/licences.md
 
 echo 'building mkdocs'
-mkdocs build --clean
+python3 -m mkdocs build --clean
 
 #mkdocs serve
 
diff --git a/docs/dci-deploysasviya.md b/docs/dci-deploysasviya.md
index 399c13a..fb1185c 100644
--- a/docs/dci-deploysasviya.md
+++ b/docs/dci-deploysasviya.md
@@ -86,6 +86,7 @@ Unzip the frontend into `/var/www/html` directory of the SAS Web Server.  Open `
 
 - `appLoc` attribute - this should point to the root folder on SAS Drive where the Job Execution services will be created.
 - `contextName` attribute - here you should put the compute context that you created in the earlier step.
+- `dcPath` attribute - ensures auto deploy to this physical location on the filesystem.
 
 ### Deploy backend
 The services can be deployed using a hidden menu in Data Controller.  Navigate to the app, and add `/deploy` to the url.
diff --git a/docs/filter.md b/docs/filter.md
new file mode 100644
index 0000000..bab1951
--- /dev/null
+++ b/docs/filter.md
@@ -0,0 +1,26 @@
+---
+layout: article
+title: Filter
+description: Data Controller for SAS® enable complex filters to be created on any variable. The "dynamic" where claue setting enables new values to be filtered by remaining filter clauses.  Filtered views are shareable!
+og_image:  img/filter_dynamic_on.png
+---
+
+# Filtering
+
+Data Controller for SAS® enables you to create complex table filters. The "dynamic" setting enables the dropdown values to be pre-filtered by previous filter clauses.  Filtered views are shareable!
+
+## Shared Filters
+
+When filters are submitted, the query is stored, and a unique URL is generated.  This means you can share the link to a filtered view of a table!  This can be used for VIEW, for EDIT and also for downloading data.
+
+![](img/filter_url.png)
+
+## Dynamic Where Clause
+
+When filtering *without* a dynamic where clause, all values are always returned in the selection box.
+
+![](img/filter_dynamic_off.png)
+
+By contrast, when the dynamic where clause box is checked (default), the values in the *second and subsequent* filter clauses are filtered by the previous filter clause settings, eg:
+
+![](img/filter_dynamic_on.png)
\ No newline at end of file
diff --git a/docs/img/filter_dynamic_off.png b/docs/img/filter_dynamic_off.png
new file mode 100644
index 0000000..7f18fee
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diff --git a/docs/img/filter_dynamic_on.png b/docs/img/filter_dynamic_on.png
new file mode 100644
index 0000000..3adfbc5
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diff --git a/docs/img/filter_url.png b/docs/img/filter_url.png
new file mode 100644
index 0000000..dd07ee6
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diff --git a/mkdocs.yml b/mkdocs.yml
index c29ec18..adee6e2 100644
--- a/mkdocs.yml
+++ b/mkdocs.yml
@@ -5,10 +5,11 @@ nav:
 - User Guide:
     - Overview: dc-overview.md
     - DC User Guide: dc-userguide.md
-    - File Uploads: dcu-fileupload.md
-    - Table Viewer: dcu-tableviewer.md
-    - Data Lineage: dcu-lineage.md
     - Data Catalog: dcu-datacatalog.md
+    - Data Lineage: dcu-lineage.md
+    - File Uploads: dcu-fileupload.md
+    - Filter Mechanism: filter.md
+    - Table Viewer: dcu-tableviewer.md
 - Configuration:
     - Dates / Datetimes: dcc-dates.md
     - Emails: emails.md