MBLogic for an open world in automation
Pipes, ducts, conveyors, and other similar devices can be created by simply drawing rectangles. They can then be manipulated as pilot lights via their "id". Multiple rectangles can be grouped together by using the "group" feature.
When creating the rectangles the "stroke" property should be set to "none". This turns off the outline around the rectangle, which in turn prevents the "joints" between different rectangles from being visible.
See the section on user created graphics for addition points to consider.