Nx Witness offers many possibilities when working with Multi-Videos. A user can do almost everything as with regular Layout:
•Add or remove Items. For instance, if Multi-Video was exported from 10PM to 11PM and a new camera was added, it would get synchronized with other cameras and be displaying in the same archive (10PM – 11PM). See "Adding Items to Layouts" and "Removing Item(s) from Layouts".
Note: Local Files are not allowed in Multi-Videos
•Adjusting Layout Look and Feel (move, swap, resize, rotate). See "Adjusting Layout’s Appearance".
•Save modified Multi-Video. One restriction is applied: it is not possible to mix Local Videos and Cameras in a single Multi-Video. Same as Layouts (see "Saving Layouts"), but can be performed by Viewers.
Note: Multi-Video can be saved with a read-only flag (modifications will not be saved).