These numbers are available in building blocks -> parameters, but when you reopen calibrate indicator button, parameters you set are not shown.
attached is picture of ADX, as an example.
I set values to (0~100, Step:0.1) through calibrate indicators button.
But values are gone.
I have tested the issue. I can reproduce the issue in Native builder. I have fixed it.
It was caused by native and custom projects have different handling on events. (Exit).
Thank you.