You can insert the required chords at the required time in the bars. And then, do a manual edit in Staff Roll Notation mode. R-click on the note. Modify the time to delay the note according your requirements. Apply that for each note of the chord. Don't forget to use guitar voicing for a guitar track. When all is OK for you, don't forget to freeze the track. that is what I use for guitar rasguedo for example.

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