How to make a repeatable endurance upgrade

Devices
1

I want to make an endurance upgrade like in tag that can be gotten more than once and just increment max energy by a bit each times

2

hold on im looking at the matter…

3

sorry, but i dont think you can… maybe you should ask blackhole927 though.

4

Here’s a guide (not mine): How to Add Speed- Difficulty 2/5 or 🟨