Copy segment from one channel to another

How can I copy segment from one channel to another? I’m using draw tool for certain clicks, but it works only on one channel. Or is there a way to make the draw tool to edit both channels simultaneously?

Are both the left and right channels identical?

I can’t see why you would want the draw tool to edit both channels simultaneously. What are you actually trying to do? If you find yourself using the Draw tool a lot, then there is probably a better way to tackle the job.

With the optional “Channel Mixer” plug-in: Missing features - Audacity Support
Instructions for installing the plug-in are here: http://wiki.audacityteam.org/wiki/Download_Nyquist_Plug-ins#download

I’m trying to get rid of click. Can’t cut the track because length has to stay the same.
Will try channel mixer, thank you

I wrote an effect specifically for this type of task: EZ-Patch