Unlike other sequencers in Reason is not allowed to copy or duplicate or do any operations on the bars while a song is playing.
Not much of a suggestion but is a small thing (along with the inability of drag and drop) that are starting to give me a little 'discomfort .
I would specify. just copy and paste
by the keyboard
(control c + v) and quantization (control + k) are not allowed because instead the automation with the mouse are possible, while reason is playing.
In honor of record