Ok will assume it's cinnamon, so to answer your question, right mouse the menu and choose Edit menu. In the menu editor, select the category on the left you want the item to be in then click the New Item button. fill in the details for your application ensuring you tick the Run in terminal box. Save exit the editor and test it works. Once you're happy, right mouse the item in the menu and select Add to desktop.
[Edit] your original post and add [SOLVED] once your question is resolved.
“The people are my God” stressing the factor determining man’s destiny lies within man not in anything outside man, and thereby defining man as the dominator and remoulder of the world.