© Copyright Qvis® All documentation rights reserved. 57Figure 4-16 Modify: Double click one mark information item, you can see system pops up a dialoguebox for you to change mark information. You can only change mark name here. Delete: Here you can check the mark information item you want to delete and then clickDelete button, you can remove one mark item. .Note: After you go to the mark management interface, system needs to pause current playback.System resume playback after you exit mark management interface. If the marked file you want to playback has been removed, system begins playback from thefirst file in the list.4.4.4 Multiple-channel PreviewRight click mouse and then select multiple-channel preview; you can go to the followinginterface. See Figure 4-17. Here you can enable and set multiple-channel preview so thatyou can view several video at one channel. Enable: Check the box here to enable this function. Storage: This function is null right now. Frame rate: PAL：1-25fps.NTSC:30fps. Bit stream value: Default setup is 1024Kb/S.
