Copying different voices

Hi to all,
Please can anyone tell me how can I resolve this problem?

I have writen 2 voices with chords in the bass clef for several measures, but now I want to copy one of these voices into the G clef.
Can anyone please tell me how do I select and copy the voice 1 of the bass clef ( during all the range of the measures that I select ), so that I can past them in one go, instead of input again all the chords one by one on the G clef?

Thanks for any help on this matter.