We simply take a picec of white vinyl, bumper sticker material, and write the mesh spec on it, then cover it with 2" clear packing tape. You can see/read the label across the room.
The masking tape is the design number and a brief location description. This is changed out on every job as part of reclaim.
We tried colored electrical tape and/or zip ties but with our yellow light screen room, it was a problem with blues & greens.
Simple & effective.
~Kitson