How to Change Smart M8 Monitor Developer Mode

I bought a Smart M8 monitor this time. (Smart M8 S32BM801)

I have to develop a TV app at Tizen Studios. So, I want to connect Tizen Studio and m8.

To connect this, I need a way to change it to developer mode.

I know how to change the TV to developer mode.

But M8 can't use this method because it doesn't have a number on the remote control.

I would appreciate it if you could tell me how to change from M8 to developer mode.