So I'm trying to create a desktop icon for an application, and I dragged it from the top-left menu (I think it's called Dash or something). I clicked on it and it says it is untrusted and refuse to execute it.
I found out that I have go to Permission and check the checkbox saying "Allow executing file as program". However, when I open up the Permission dialog it says "I am not the owner, therefore I cannot change those settings." Everything is disabled and I can't check it.
Why is this happening and how do I "make myself the owner"?