Enter chords once and Show Chords via parameter on instrument.

Hi,
I enter chords for each instrument. Ex. Bass+guitar+keyboard+Vocals
Is it possible to add a parameter per Instrument line to take over the chords that are generic for the whole song.
The parameter on the instrument says "show chords: yes/no"
Another possibility would be to add a copy possibility for chord symbols only.
Or is there already the possibility to do so.
Thank you
Claude