This is a small script for adding trim path easily in After Effects. Trim-pack will add trim path and keyframes at once for selected layers. Support for KBar argument.

Install Script

Place the script file (trim-pack_V2.1.jsxbin) to following loaction

WIN C:\Program Files\Adobe\Adobe After Effects <AE version>\Support Files\Scripts\ScriptUI Panels

MAC Applications\Adobe After Effects <AE version>\Support Files\Scripts\ScriptUI Panels