Set self-created icons to the highest priority/layer

[Ssesmar2]

Hey, mby anyone can help. How can I set icons created by my addon on the wow maps so that they are not among other icons created by blizzard on wow maps. So for example the icon on the Kalimdor map from blizzard for Orgrimmar, I have a self-created icon exactly on the Orgrimmar icon, but it is sometimes under the layer of the Orgrimmar icon. Can I change it so that my created icons are always above the icons from Blizzard itself? or is that not possible at all?

Thank you in advance for the help