When you have omega and lets say you want 2 or 3 ques going on the account how its better to do ? in the eden store you have multi que packages but not sure if it affects just one extra que or you can get 3 ques going at the same time
When applying MCT you can specify which additional character you want it to apply to.
And you can select more than one MCT at once to extend the additional queue for more than one “month”.
After you’re done with your 2nd character queue, you may repeat the same for the 3rd character’s queue.
More details here:
https://support.eveonline.com/hc/en-us/articles/203411052-Multiple-Character-Training
Also, I think game mechanics questions should be posted in New Citizens Q&A, even if you are not a “new citizen” 
Ok got have to activate and confirm at the station or will not work on the char