video1.0<iframe src="https://www.loom.com/embed/dc72ebeb305647bb95c8c7cf343d6063" frameborder="0" width="1920" height="1440" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>14401920Loomhttps://www.loom.com14401920https://cdn.loom.com/sessions/thumbnails/dc72ebeb305647bb95c8c7cf343d6063-495d99f2005b422a.gif746.233This Loom explains the anatomy and organization of a PyRevit extension folder so viewers can customize their Revit toolbar. It covers the root extension folder with tabs, panels, and script buttons, plus how pull-down menus and stacks help group items. The video also explains the role of the library folder for reusable code and the hooks folder for event-driven scripts, and shows how Alt-clicking or holding out opens existing button source code for learning and reuse. It demonstrates renaming buttons, removing panels, reloading PyRevit, updating icon.png files with a maximum size of 96 by 96 pixels, and using bundle YAML to control panel layout and ordering, noting that misordered items often require a Revit restart.