If it is only one bouquet, and numbering is important:
In the attached file, edit this section. Do not go over 100 channels if you want to maintain the numbering. Transfer to the provider file location. In the plugin.
my_favourites = {141:1, 102:2, 178:3, 227:4, 105:5} # LCN of channel to add followed by position.
You channels in "my favourites" bopuquet will end up as
141
102
178
227
105
If you are not bothered about numbering, and multiple bouquets:
you can use the custom LCN feature. Read the readme file.
Huevos is making some modifications to ABM which could change hows this works.
If multple bouquets and you want to be able to access chanenls by official number butons and ability to move bouquets around as well as contents, you can use AB 28.2 and and use the custom sort function.