Tvheadend

Hello,

How can I do the following?
My 4800s engel decoder has Sat2ip.
I have been able to configure tvheadened for it to map channels.
I need to send to the decoder 2 lines of http:
The first one changes the active channel in the decoder: http://192.168.0.2:1988/7/0/x
The second sends the video stream: http://192.168.0.2:1988/6/0/x
X has the same value, it is the channel number-1 in the decoder channel order.