If you can do what is needed from commands then got your /home/username/Desktop directory and make a new script like so.
first command line
second commad line
third so on and so on
Save the script and set the execute attribute. ' chmod + x name_of_script '.
Also use full path to each command in the script.
Once saved it should appear on the Desktop and then you can change the icon if you wish. Or at least under KDE. Don't use Gnome.