Custom filter input to multiple sub filters
This issue was created automatically from an original Mantis Issue. Further discussion may take place here.
A reasonable use case of custom filters is to feed the input directly to multiple filters that process the input in different ways. Right now there is no way to do that. Each filter will have its own input that has to be connected individually to another object in the pipeline when created.
One way to implement this would be to allow the linking of the inputs so that when one is set the other is also set to the same thing.
Another way to implement this would be to have a passthrough filter that had its input exposed and its output connected to all the internal filters that need the input. The create custom filter implementation could create this automatically, or we could just provide a workaround for PV 3.0 where we simply have a pass through filter that users could set up for themselves until we do it right.