Regular monokote(not trim sheets) do not have a sticky back. The adhesive is activated with heat or trim solvent(acetone). If you are good you can apply trim with trim solvent, but use very sparingly and work quickly. You can use the windex or ammonia/water to apply the monokote. Some people also use a warm iron to lightly go over the trim piece to make sure all the seams are adhered.
When I apply a multi color pattern to a plane I usually make a skin with all the patterns before I apply it to the plane. For small trim pieces such as stars or stripes I just run the piece down with a soft cloth(to get rid of trapped air) and then apply with a warm iron.