Create a new folder in webif (bouquet editor)
Then ftp to etc enigma 2
Drag the files you require (whatever you named your new bouquet)
And also your 28.2 autobouquets file to your desktop.
Open the 28.2 file and copy it's contents and paste it into the bouquet file you created.
In the new bouquet file you can swap around your channels, Add IPTV channels or even add channels from different bouquets from different satellites (if you've got multi sat)
When you've done your chopping and changing, ftp the new bouquet file back to etc enigma 2
Restart gui / enigma and the channel list should auto update .
Your original 28.2 autobouquets will still auto update but the new bouquet will stay as you've edited it.