Ctrl + O : Open a file
Ctrl + R : Select Workspace
Ctrl + C : New Workspace
Ctrl + W : Close the current file

Ctrl + B : Observed variables
Alt + X : Run
Alt + E : Run successive USMs

Ctrl + H : Shortcuts
Ctrl + L : LAI
Ctrl + M : Select/Add a model

Ctrl + P : Parameters
Ctrl + Q : Exit

Ctrl + T : Optimize
Ctrl + U : Select/Add a USM

