ZBrush offers a collection of default Tools to choose from during an active session. You can also import external 3D formats (ZTools (.ZTL) and ZProjects (.ZPR)) into the active scene to add to your model collection.
The example above demonstrates an open scene with the Import window revealing select options.
Learn how to import all 3D format types in this guide's Import section.
Tools are managed in the Tool library, which is found in the Tool palette. Tap to select available Tools to load into the canvas.
Swap between toolsy to serve your project needs. The example above highlights imported Tools added to the library for potential selection.
Learn more about saving these files in this guide's ZProjects & ZTools section.