Another alternative is you might use the {{off}} flag in your data source to force a layer’s visibility to turn off. See this small bit of documentation, then head over to our YouTube channel to check out this video.

There are Plugins like Text Anarchy that let you animate Font Styles… and i’ve read that in the upcoming templater version you might be able to hook into extended script… Still baffles me that there is no way to animate font properties in AE … in 2018

To Avoid the 1-Frame Issue we did the following: Create a 2-Frame Comp with a really high framerate (whatever the current version of AE supports) and export it as a tiny Quicktime. That file will be effectively handled as a 1-Frame footage without being a infinite-time-layer. So basicly the same as above, just adjust the framerate!