This video uses an old version of MochaImport. A new version and new tutorials are available at mamoworld.com
In this After Effects tutorial I explain the usage of the new features in my MochaImport script version 2.0
The second part of the tutorial is available here: ae.tutsplus.com/tutorials/vfx/creating-a-tracked-head-wound/
The new features make use of the Red Giant Warp plugin and allow to perform advanced corner pin tasks. You can for example create with one click a precomp that contains an undistorted and stabilized version of the corner pinned area. In this stabilized setting arbitrary modifications can be done and are automatically transferred to the original comp.