Better WMS Layer support

It would be great if Geocortex Essential had better support for WMS layers.  As mentioned by a couple of other people in the forums, I am trying to utilise a number of WMS service in my site.  One of these WMS contains hundreds of sub layers the other WMS contains dynamic layers that change name on a very regular basis.

It would be great if GE manager allowed more control of the WMS layers:

• Allow the inclusion/exclusion of sub layer/groups within the WMS (similar to ArcGIS Server Map service) and remember it w
• Allow the choice of other WMS parameters such as image type, (png's can be quite large to return where as jpegs are generally smaller)

Some of this info seems to exist in the site.xml but any attempt to change it either corrupts the site or pushes back errors about missing layer.

thanks

Ben