Fujifilm XT3 Focus and Exposure Lock Buttons

The Fujifilm XT3 and XT2 allow you to customize the AE-L and AF-L buttons. You can modify the settings to allow for exposure lock toggle or exposure lock while you are holding down the custom button. You can also do the same with focus lock.

Additionally, can modify the shutter release button to remove the halfway press to lock exposure -- both in single shot as well as in continuous shooting modes.