Controls: SPACE: add new timer. R KEY: reset a timer. (Enter the number of the timer when prompted) D KEY: delete a timer. (Enter the number of the timer when prompted)
This uses a list to have multiple timers. For this project, I set a limit to 5 timers. The 4 custom blocks are all you need for your projects if you decide to use this. But, you can just drag the sprite called "timer controller" into your backpack and choose which scripts to use.