Thank you Bob, that has been quite helpful. For example, based on using the Help explanations, why not put "Recover data from the decoder" instead of "Read changes on sheet"? And something like, "Write only what has changed" instead of "Write changes on sheet". Likewise, "Read all from the decoder" instead of "Read changes on all sheets"? And, "Write all to the decoder"?
So (within the limitations of this text format), we could have (note preamble to each row of buttons):
"For CVs on this pane only: Recover values from decoder/Write changes to decoder/Read all from decoder/Write all to decoder."
"For the entire range of CVs: Recover values from decoder/Write changes to decoder/Read all from decoder/Write all to decoder."
Regards
Peter
