Hey hibjgalaphor, thanks for the question. You can set up the End Turn button by setting its settings in the plugin parameter. The most important of these is the End Turn skill which corresponds to the ID of a Skill in the Database which is used by the Actor when the button is pressed in Battle.
In the Demo Project, we have set up the End Turn Skill to look like this in the Database. This Skill must use the <willEndTurn> notetag to indicate that it will end the Actor's turn once the Skill has been used so that it can move onto the turns of other Actors in the party or onto the Enemy Troop depending on the initiative order.
That should be all there is to it, but please follow up and let us know how this looks like in your project so we can help troubleshoot any issues you have been running into :)
Thanks,
MythAtelier Team