Hi Lydia,

In fact internally you cannot directly add a channel to an image, it will always generate a new Sequence whatever happen so using the combine channel block you reproduce the exact same behavior except that you have to specify which channel(s) you want to keep on your original image.
So in a word, we can add a new “add channel” block but just to tell you it will do the same process as “combine channel” internally.

Best,

– Stephane