Fellas, this is way off-topic for a tutorial about using Expire based timers. There are many tutorials and posts about regular timers. If you have a unique problem, you can always create your own new post for a unique solution.
Topics of interest to you -
Managing a timer using a handle in a global variable.
Managing an ‘array’ of similar timers for a group of Items.
Both of these are demonstrated in thesimple and complex examples here
