Previously, I was able to open multiple files in frecobaldi with each file in a separate tab. Then, a couple of days ago, I found that this function was no longer working as expected. I have no idea what why the function might have become disabled; I don't recall making any major changes to my settings. Is there something in the settings that, if changed, will restore the function to its former usefulness?
I run windows 10 and lilypond 2.19.83 and frecobaldi 3.02