It is a simpler design, it goes through the hole (without forcing it Too much), and after few tweak it push the button well enough. i can grab it with whatever finger i like.
once again, the design is too bad to be shared but you get the idea ! i'll keep that for a while and see how it do !
![Image](https://i.imgur.com/WPqqiIf.jpg)
![Image](https://i.imgur.com/zykdrvn.jpg)