FFS - Problem Using Slat Conveyor in Flow Simulation – Resource Not Selectable

Hi everyone,
I have a use case involving the Slat Conveyor in Factory Flow Simulation.
I created a slat conveyor and attempted to use it in a product flow; however, when selecting the resource, the system does not allow it to be selected for use.
Could you please help me understand why it cannot be used, whether there is a way to make this resource usable, and also if the kinematics created with the mechanism representation will be preserved when the flow is generated?