That seems to be the solution however you will have lead to where I find that line to edit .....or is it an extra command? If so i will need even more help. I am not a newbie at computers but I'm not a programmer :(
Like tomas said, create a shortcut on your desktop and modify the contents of the target line as described in the manual, fitting your needs. Different example: "C:\Program Files (x86)\Navigator17\PC_Navigator\PC_Navigator.exe" --window_border=yes --atlas='C:\ProgramData\Navigator\17.1\atlas_pcn_free.idc'