TINA (Texture Importer 'n' Assigner) is a Python plugin to automate importing multiple textures into appropriate material channels.
The plugin was originally created to import the different texture sets created in Substance Painter, into Cinema4D's native materials before the node-based materials where introduced in R20.
Plugin is compatible with R17 - R21. Hasn't been tested on S22, nor with node-based materials.
Will definitely not work with R23.