Sorry, there is no commercial scanner capable of scanning a LTR Multi-Net system. You can put the frequencies in your 96 and toggle through them in the manual mode, but you will miss most of the transmissions.
If you search Multi-Net in the Wiki you can find info on how a Multi-Net system can be tracked. You would need a scanner with a discriminator tap, a data slicer, another scanner that can be controlled by a computer and a computer. There is a LTR section in the forums that also has info on Multi-Net systems.
Good Luck Jim