I am triying to make my homework in ArcMap - Modelbuilder. I have made a functional model two days before. Today I open it, it works fine, but I cannot edit the tools which I gave into in. I cannot click on them (see picture).
Probably, you think, that it is easier way to make a new model, but I have tried and it doesn't work (I do not know some parametres).
Do you have some idea?
Thank you a lot,
the Czech republic