How to see more details in VOIP/graph analysis?

Hi, when I open a graph analysis (flow) for a voip call it will display the SIP messages in the middle but with only appx. 20 characters per line. I can enlarge the whole window and also can move the right divider but the content of the middle part will always stay same and so will be difficult to read (e.g. often strings are broken with ... at the end even the middle part does have enough space. Does this only happen for me? Is it possible to fix in future releases?