Composer
The scientific whiteboard. Chem-aware and spatial — sketch methods, arrange structures, and leave notes that keep their meaning, because the surface knows what the things on it are. A portal inside GUIDE, or a standalone place to think.
Molecules stay molecules, methods stay methods, references stay linked. Move a structure and its annotations follow; group a cluster and the provenance comes with it. Nothing on the board is a dumb picture.
Branch an idea, try three routes, keep the one that held. The board is where a question gets worked out — freely — and every version is still recorded, so exploration never costs you the record.
Open it inside a GUIDE project to sketch against your live entities, or open it on its own for a quick spatial think. Stylus and tablet are first-class.