To follow up, is there any 'power-user' way to manipulate Caesar input files? I have worked with the data matrix and neutral file commands, and they have decent functionality.

But I am hoping for more. Is the input file in a general database format, one that you could use generic sql calls or etc to manipulate the data?

I'm hoping there is some way to do simple data entry tasks, (like apply restraints to a number of nodes at once)