panel measuring

[vale79]

Hello everyone
I must have done something wrong because my measuring panel has reduced to this, I no longer have all the information that was there before (to understand us as in the picture of the panel measured within the help).
Does anyone know how to restore it?
Thank you very much
That's right.

 

[Matteo Cappelli dis.CAD]

Hi.
you must "open" by clicking on the symbol <

 

[vale79]

I don't believe it. I think I've tried all the arrows except those. . .

Thank you very much! ! ! ! !