Snippet to modify timeline clip height to 'x' size?

[stujumpsrope]

Hi.

I looked through the Hammerspoon and Lua documentation to try a line of code that would modify the clip height in the timeline to around 80% so i can assign it to a button on my console. But I really don't know what I'm doing accept I tried this in the snippets editor: plugins.finalcutpro.timeline.height.changeTimelineClipHeight(up) and it didn't work. So does anyone know how to specify a height (doesn't have to be a percentage) with code which would allow me to explore the idea with other parameters?