GIMP - How to settup pen Pressure 如何設定筆壓感應

It was first time using GIMP, the function I need was pen pressure!
I tried to changed the setting on Tool Options panel but it seems not working.

without pen pressure, GIMP will be useless!
I took a quick look the tutorial but  there has nothing I need.
Finally, I found the Input Devices in Edit menu.
Select "WACOM Tablet Pressure Stylus" and change the "Mode" to Screen.
change the Pressure Curve if you need.
That's it!!
now you should get the pen pressure!

第一次使用GIMP，而第一個要找的功能就是筆壓感應！
一個繪圖軟體怎麼可以沒有這個功能！
筆刷設定裡找不到
教學裡也找不到
最後在編輯（edit）裡發現輸入裝置（Input Devices）的選單
選擇 "WACOM Tablet Pressure Stylus" 將"mode"改成Screen就可以了
可以再另外調整壓力曲線。