Leave it in 4/4. Then open the style picker and type words in the filter like “Celtic” or “6/8” “12/8” etc and choose a style that fits.

You will then enter up to 4 chords per 4/4 bar, with each bar equivalent to two bars of 6/8.

The notation will show in 4/4, but there is a setting on the notation to switch the display to 6/8, so it looks just like your printed notation books.

The only thing you can’t do is enter chords on different triplets, just the first and fourth triplets of the 6/8 bar.

If musicians are playing Macnamaras Band, they don’t count it in in 6/8 and it’s not hard to count it in 4/4 as you play it. It’s just notation display that’s 6/8. Realizing that opens up a world of style possibilities to mix any 4/4 styles with 6/8 or 12/8.

Jazz swing music is actually 6/8 or 12/8, it is just by convention it is notated in 4/4 with a marking saying the eighth notes are triplets.
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Have Fun!
Peter Gannon
PG Music Inc.