[Paraview] Probe filter datasets limitations

[Max Lapan]

Hello, All

One question which interests me a lot: 

Is there any way to limit amount of datasets selected by 'Probe'
filter? 

My concrete problem is:

I have file with several datasets - pressure, velocity, energy and so
on. I want to display chart which shows changing of these parameters
along some line. But absolute value of parameters vary a lot, 
average pressure - 1e6, velocity - 1. 

So, I cannot clearly see changing of parameters on chart. It would be
great if I could select which datasets will be displayed in
chart. Another nice feature that would help a lot - logarithmic axis.  

Any ideas?

-- 
Thanks in advance,				
Max Lapan