Idea

A lot of parameters from Conveyor Type Properties / Visual panel (like conveyor legs, etc.) - it seems like don´t work!

It only works if you just right click the conveyor and select Conveyor System Properties, then under the general tab, just select the check box titled "Draw Render Mode."

In my opinion it will be better to put the parameters in the visual panel, like Roller Diameter, Spacing etc. also in the the gereral tab (or vice versa)!