I don't understand your question. Can you explain in more detail what you are trying to do?
First , thanks for replying
I will provide screen shot to clearfied it
This is an example of what I want to do but of course with more markers and more images/video/others than that I just made this to help you understand what am I going for
I want to randomize those image to each marker , I hope that you could help me , thanks again for replying
This looks more like an editing task. After Effects is not for editing. Use Premiere Pro. It even has an Automate to Sequence command as described here: Adobe Premiere Pro Help | Add clips to sequences and in this tutorial.
If you then want to use the resulting edit in AE, you can use the Import Premiere Pro Sequence command in After Effects.
If you really want to work in just AE, you could look at http://aescripts.com/automate-to-sequence/ which mimics the Premiere Pro command. (There's also http://aescripts.com/rift/, but I don't know if it does what you want.)
Thank you very much that was helpful