The "URC7936 (Universal Remote Control, Infrared)" from One for All can control various devices such as TVs and streaming boxes, but there are some limitations and customisations that need to be taken into account.

- Infrared control: The remote control uses infrared (IR) for control, which means that it is only compatible with devices that accept IR signals. Zattoo and Plex typically run on devices that support IR signals, such as streaming boxes or smart TVs.

- Functions and buttons: The remote control has buttons for basic functions such as power, AV, navigation and playback controls. There are also app shortcut buttons for direct access to streaming services such as Netflix, YouTube and Amazon Prime. However, specific functions such as fast forward and rewind may need to be learnt or configured if they are not available as standard.

- Learning function: The remote control has a learning function that allows you to copy specific buttons from the original remote control. If the original Zattoo or Plex remote control has coil buttons, these functions can be transferred to the universal remote control by learning the corresponding buttons.

To summarise: It is possible to use the rewind functions on Zattoo and Plex via the "URC7936", but you may need to learn the corresponding buttons from the original remote control and transfer them to the universal remote control.