Add powerview supported shade information (#22944)

Co-authored-by: J. Nick Koston <nick@koston.org>

source/_integrations/hunterdouglas_powerview.markdown

@@ -10,8 +10,9 @@ ha_domain: hunterdouglas_powerview
 ha_iot_class: Local Polling
 ha_config_flow: true
 ha_codeowners:
-  - '@bdraco'
+  - "@bdraco"
-  - '@trullock'
+  - "@kingy444"
+  - "@trullock"
 ha_homekit: true
 ha_platforms:
   - cover
@@ -32,6 +33,100 @@ There is currently support for the following device types within Home Assistant:
 
 {% include integrations/config_flow.md %}
 
+## Shades
+
+### Known working devices
+
+<div class="note">
+If your shade is not listed please raise a feature request on the community forum.
+</div>
+
+| Name (Type)                            | Capabilities                    |
+| :------------------------------------- | :------------------------------ |
+| Roman (4)                              | Bottom Up                       |
+| Bottom Up (5)                          | Bottom Up                       |
+| Duette (6)                             | Bottom Up                       |
+| Silhouette (23)                        | 90° Tilt when closed            |
+| M25T Roller Blind (42)                 | Bottom Up                       |
+| Twist (44)                             | 180° Tilt when closed           |
+| AC Roller  (49)                        | Bottom Up                       |
+
+### Devices with limited functionality
+
+<div class="note">
+These devices are currently still being tested. We ask you wait patiently while this completes. Until this is completed these may perform basic or slightly odd functionality.
+</div>
+
+| Name (Type)                            | Capabilities                    |
+| :------------------------------------- | :------------------------------ |
+| Top Down (7)                           | Top Down                        |
+| Duette, Top Down Bottom Up (8)         | Top Down, Bottom Up             |
+| Duette DuoLite, Top Down Bottom Up (9) | Top Down, Bottom Up             |
+| Silhouette (18)                        | 90° Tilt when closed            |
+| Silhouette Duolite (38)                | Dual Shade Blackout + 90° Tilt  |
+| Facette (43)                           | 90° Tilt when closed            |
+| Pleated, Top Down Bottom Up (47)       | Top Down, Bottom Up             |
+| Venetian, Tilt Anywhere (51)           | 180° Tilt Anywhere              |
+| Vertical Slats, Left Stack (54)        | 180° Tilt when closed, Vertical |
+| Vertical Slats, Right Stack (55)       | 180° Tilt when closed, Vertical |
+| Vertical Slats, Split Stack (56)       | 180° Tilt when closed, Vertical |
+| Venetian, Tilt Anywhere (62)           | 180° Tilt Anywhere, Vertical    |
+| Vignette Duolite (65)                  | Dual Shade Blackout             |
+| Curtain, Left Stack (69)               | 180° Tilt when closed, Vertical |
+| Curtain, Right Stack (70)              | 180° Tilt when closed, Vertical |
+| Curtain, Split Stack (71)              | 180° Tilt when closed, Vertical |
+| Duolite Lift (79)                      | Dual Shade Blackout             |
+
+## Capabilities Information
+
+### Bottom Up
+
+These shades offer only the simple up/down movement of your conventional shades.
+
+### Top Down
+
+<div class="note">Full functionality not currently implemented</div>
+
+These shades offer a unique movement that is inverse to your conventional shade, where the shade is fixed to the floor and lowered from the roof.
+
+### Top Down, Bottom Up (TDBU)
+
+<div class="note">Full functionality not currently implemented</div>
+
+TDBU shades consist of two rails controlled by two motors designated by Top and Bottom with fabric in between.
+The Top and Bottom can move independently to cover different parts of the window but cannot pass the other.
+Two different entities that will be created for each blind: Top and Bottom.
+
+#### Top entity
+
+- 'Up/Open' will move the Top rail to the bottom of the window and set the Bottom rail to its closed position.
+- 'Down/Close' will move the Top rail to the top of the window and set the Bottom rail to its closed position.
+- 'Position' is the position in which the Top rail can move from the top of the window (0) to the bottom (100).
+- The position of a Top rail cannot pass that of a Bottom rail. If you set an impossible position, the position will fall back to the closest possible value to that requested.
+
+#### Bottom entity
+
+- 'Up/Open' will move the Bottom rail to the top of the window and set the Top rail to its closed position.
+- 'Down/Close' will move the Bottom rail to the bottom of the window and set the Top rail to its closed position.
+- 'Position' is the position in which the Bottom rail can move from the bottom of the window (0) to the top (100).
+- The position of a Bottom rail cannot pass that of a Top rail. If you set an impossible position, the position will fall back to the closest possible value to that requested.
+
+### Tilt when closed
+
+Shades with Tilt when closed functionality only allow a shade to tilt when it is closed and will automatically close the vanes when the shade is moved from it's closed position.
+
+### Tilt Anywhere
+
+<div class="note">Full functionality not currently implemented</div>
+
+These shades can tilt in any position and do not require the shade to be open or closed to adjust the tilt position.
+
+### Dual Shade Blackout
+
+<div class="note">Full functionality not currently implemented</div>
+
+These shades consist of two pieces of fabric attached to a single rail. The front shade is sheer, with the rear being blackout, and neither panel can move independently from the other.
+
 ## Example Automations
 
 ``` yaml