Hi, Welcome to the Forum greasybob!
Here are all important links:
http://lmms.io/forum/viewtopic.php?f=1&t=4740
-A few rules and useful forum instructions
I do not know this plugin, but are you aware, that LMMS has an build-in chord engine and a huge chord table?use CHORDZ with LMMS.
On the the piano-roll component, select the chord-dropdown (right-most here in picture)
-default it has the selection 'no chord'.
Select any chord from the table, and every note you insert, will be inserted as that chord, with the select-note as root
Can chordz do it better?