I think that’s missing because there is no sequence_get_name function to automatically figure out sequences in the game by looping over them, though I could have sworn that I had a workaround implemented for that.
In the meantime you can add the following to the end of obj_gmlive’s Create event:
live_constant_add("Sequence22", Sequence22);
(repeat for each sequence you want to use in “live” code)
or do
layer_sequence_create(layer, x, y, asset_get_index("Sequence22"))
instead of just
layer_sequence_create(layer, x, y, Sequence22)