Photoshop CS4, CS5, CS6 and CC (2013)
Restart Photoshop and choose Window > Extensions> FilterHub from the menu. This displays the FilterHub panel. If FilterHub does not show up on the Window > Extensions menu, make sure that Edit > Preferences > Plug-Ins > Load Extension Panels is activated. If this check box is activated and it still does not show up, try installing again.
Under Windows you have the choice between the FilterHub extension and the automation plugin. The extension is launched as described. The automation plugin is launced from File > Automation > FilterHub. The main difference between the two versions is that the extension can be docked with other panel whereas the automation plugin starts up faster. Unless you prefer a faster startup and do not need the panel docking we would recommend using the extension version of FilterHub. In Photoshop CS4 for Windows the FilterHub automation plugin also has the advantage that the context menu works.
Photoshop Elements and Photoshop CS3 and older (Windows only)
The FilterHub panel displays automatically. After closing it, you can restart it by choosing File > Automation > FilterHub from the menu.
Docking the FilterHub panel only works in Photoshop CS4 up to CC (2013) with the FilterHub extension. In other applications you can still collapse or close it with the icons on the titel bar, so that it does not occupy screen space if not needed.
When you run FilterHub extension in Photoshop for the first time, it is displayed as a separate window as shown here:
You can leave it this way or you can dock it to your other panels. To do that click on the top bar of the window or the panel tab button and move it over your other panel. You will now see a blue line or blue frame. A blue line indicates that the panel will have its own row whereas a blue frame means that the panel will be placed among other panels' tab buttons. Finally release the mouse button to dock the panel.
Here you can see FilterHub docked together with other panels:
In Photoshop CS4 up to CC (2013) you can adjust the behavior of all extension panels by choosing Edit > Preferences > Interface (Windows) or Photoshop > Preferences > Interface (MacOS) from the menu. Under Options you find the "Auto-Collapse Iconic Panels" and "Auto-Show Hidden Panels". Please note that these options refer to all panels and not just FilterHub. You get the same options if you right click on the top bar of any panel.