2 2 50 10 Edit Model
 Information about the model is stored in four
files:
1. The Parameters file is a list  of independent
parameters used in the model.
2. The Constraints file describes the parameters,
which are expressed from other ones.
3. The Particles file contains the table of
particles and description of their properties.
4. The Lagrangian file is a list of vertexes of
interactions.

 Select a menu function to view the corresponding
file. Changes are forbidden in this program
point.