Using RichAi with other modifiers?

can i use richai with other modifiers? like offset modifier?

Sorry, you cannot. The RichAI uses much more information than just a sequence of points to follow. It has information on what node the character is on, where the next corner is in the path corridor it is following and where the navmesh “walls” are around it. So you cannot apply modifiers to it. You can however extend the script and alter the logic for how it is moving.