The invention encompasses analyzers and analyzer systems that include a single molecule analyzer, methods of using the analyzer and analyzer systems to analyze samples, either for single molecules or for molecular complexes. The intermediate cylinder further comprises a plurality of suction bores formed in the suction boxes so that they are open at an outer peripheral surface of the main body, an air suction source for generating suction force within the suction boxes, and a switching means for selectively switching connections between the plurality of suction boxes and the air suction source. The one or more hardware processors generate first and second presentation displays of the mock trial, each having an arrangement of content that may include a live-action video, a pre-recorded video, an image, interactive actuators or icons, text, or combinations thereof. The water permeable body has a porosity sufficient to permit water to pass therethrough but substantially insufficient to permit mortar and debris to pass therethrough. The digital sign identification may define the digital sign that the control device.