[Paraview] Reader has Filters Disabled`

[Brian C. Panneton (CONTR)]

I have created a reader which makes a vtkMultiBlockDataSet containing a 
vtkPolyData. It reads in 100 some points and plots lines between them. 
After I read them in, I don't have the option to use any filters on the 
data. Any idea why this is disabled? Could it be related to the data 
having time steps?

Thanks,
Brian Panneton