Update docs with the addition of filter editors

docs/discover/field-filter.asciidoc

@@ -4,15 +4,15 @@ You can filter the search results to display only those documents that contain
 a particular value in a field. You can also create negative filters that
 exclude documents that contain the specified field value.
 
-You add field filters from the Fields list or the Documents table. In addition
-to creating positive and negative filters, the Documents table enables you to
-filter on whether or not a field is present. The applied
-filters are shown below the Query bar. Negative filters are shown in red. 
+You add field filters from the Fields list, the Documents table, or by manually
+adding a filter. In addition to creating positive and negative filters, the
+Documents table enables you to filter on whether or not a field is present. The
+applied filters are shown below the Query bar. Negative filters are shown in red.
 
 To add a filter from the Fields list:
 
 . Click the name of the field you want to filter on. This displays the top
-five values for that field. 
+five values for that field.
 +
 image::images/filter-field.jpg[]
 . To add a positive filter, click the *Positive Filter* button
@@ -26,7 +26,7 @@ To add a filter from the Documents table:
 
 . Expand a document in the Documents table by clicking the *Expand* button
 image:images/ExpandButton.jpg[Expand Button] to the left of the document's
-table entry. 
+table entry.
 +
 image::images/Expanded-Document.png[]
 . To add a positive filter, click the *Positive Filter* button
@@ -40,6 +40,37 @@ field name. This excludes documents that contain that value in the field.
 *Exists* button image:images/ExistsButton.jpg[Exists Button] to the right of the
 field name. This includes only those documents that contain the field.
 
+To manually add a filter:
+
+. Click *Add Filter*. A popup will be displayed for you to create the filter.
++
+image::images/add_filter.png[]
+. Choose a field to filter by. This list of fields will include fields from the
+index pattern you are currently querying against.
++
+image::images/add_filter_field.png[]
+. Choose an operation for your filter.
++
+image::images/add_filter_operator.png[]
+The following operators can be selected:
+[horizontal]
+`is`:: Filter where the value for the field matches the given value.
+`is not`:: Filter where the value for the field does not match the given value.
+`is one of`:: Filter where the value for the field matches one of the specified values.
+`is not one of`:: Filter where the value for the field does not match any of the specified values.
+`is between`:: Filter where the value for the field is in the given range.
+`is not between`:: Filter where the value for the field is not in the given range.
+`exists`:: Filter where any value is present for the field.
+`does not exist`:: Filter where no value is present for the field.
+. Choose the value(s) for your filter. Values from your indices may be suggested
+as selections if you are filtering against an aggregatable field.
++
+image::images/add_filter_value.png[]
+. (Optional) Specify a label for the filter. If you specify a label, it will be
+displayed below the query bar instead of the filter definition.
+. Click *Save*. The filter will be applied to your search and be displayed below
+the query bar.
+
 [float]
 [[filter-pinning]]
 === Managing Filters
@@ -55,33 +86,38 @@ removing it. Click again to reenable the filter. Diagonal stripes indicate
 that a filter is disabled.
 image:images/filter-pin.png[] Pin Filter :: Pin the filter. Pinned filters
 persist when you switch contexts in Kibana. For example, you can pin a filter
-in Discover and it remains in place when you switch to Visualize. 
+in Discover and it remains in place when you switch to Visualize.
 Note that a filter is based on a particular index field--if the indices being
-searched don't contain the field in a pinned filter, it has no effect. 
+searched don't contain the field in a pinned filter, it has no effect.
 image:images/filter-toggle.png[] Toggle Filter :: Switch from a positive
-filter to a negative filter and vice-versa. 
+filter to a negative filter and vice-versa.
 image:images/filter-delete.png[] Remove Filter :: Remove the filter.
-image:images/filter-custom.png[] Edit Filter :: <<filter-edit, Edit the 
-filter>> definition.  Enables you to manually update the filter query and
+image:images/filter-custom.png[] Edit Filter :: <<filter-edit, Edit the
+filter>> definition.  Enables you to manually update the filter and
 specify a label for the filter.
 
-To apply a filter action to all of the applied filters, 
+To apply a filter action to all of the applied filters,
 click *Actions* and select the action.
 
 [float]
 [[filter-edit]]
 === Editing a Filter
-You can edit a filter to directly modify the filter query that is performed
-to filter your search results. This enables you to create more complex
-filters that are based on multiple fields.
+You can edit a filter by changing the field, operator, or value associated
+with the filter (see the Add Filter section above), or by directly modifying
+the filter query that is performed to filter your search results. This
+enables you to create more complex filters that are based on multiple fields.
 
-image::images/filter-custom-json.png[]
-
-&nbsp;
+. To edit the filter query, first click the edit button for the filter, then
+click *Edit Query DSL*.
++
+image::images/edit_filter_query.png[]
+. You can then edit the query for the filter.
++
+image::images/edit_filter_query_json.png[]
 
-For example, you could use a {es-ref}/query-dsl-bool-query.html[bool query]
-to create a filter for the sample log data that displays the hits that 
-originated from Canada or China that resulted in a 404 error:
+For example, you could use a
+{es-ref}/query-dsl-bool-query.html[bool query] to create a filter for the
+sample log data that displays the hits that originated from Canada or China that resulted in a 404 error:
 
 ==========
 [source,json]
@@ -108,4 +144,4 @@ originated from Canada or China that resulted in a 404 error:
     ]
   }
 }
-==========
+==========