Please, please, please bring the 'Fade Out' property for Annotations to Camtasia 2018. I use this property every time I add an annotation. Draw time alone is not sufficient. The workarounds proposed are ridiculously time consuming.
While it may look different, the ability to fade any drawing or text object onto and off of the timeline is a simple drag and drop operation of the 'fade' transition. It works well for me. Not sure if this is what you mean by "workarounds" - this is the new way to add a fade (or any of the other cool effects now included) to an object. Once its added, you can drag the fade portion of the effect to the duration you like with 1 second being the default just as the old version of Camtasia was. Drag the fade into the middle of your object to make it fade in and fade out, or drag/drop it on the front or back end. Whats not to like or what functionality do you miss? maybe someone else can offer advice.