Dials is a Cinema 4D plugin, which allows you to set up a list of most used tools and commands. These are presented as a circular palette to select from. Directly available from within the viewport.

Multiple toolsets can be created, where each toolset can be populated with tools by drag-n-drop.
A toolset can hold tools, commands, scripts, generators, deformers, ..

For each tool a set of favorites can be defined, by drag-n-drop from the Attribute Manager. Tools with specific settings can than be selected from Dials in the 3D viewport.

Available for Cinema 4D R16, R17, R18, R19, R20, R21 (Windows and/or macOS)