In early versions of PARA 3d you could derive scalar values directly from the curve controller. In new version this function is not available and you need to use Convert controller to convert vector outputs like Position/Rotation to the scalar type for use in scalar properties.

This video shows how to use slider objects as input value in PARA 3d. You also learn the difference of internal links and external links. we also use Math controller with pattern controller to alter the output of link controller in every other object.

This is a new edition of old video tutorial (Parametric Brick wall) which uses link and math controllers to create a random pattern of stone blocks.