I know this needs an update if anyone is using it, but I wanted to amend this with the fact that the required MoreCore ruleset is now available on the Forge at https://forge.fantasygrounds.com/shop/items/360/view, which means the ruleset doesn’t have to be manually installed or anything, just add it (it’s free) and it will be installed (and kept updated) as part of your FG install on your next update, so that will make things a little easier, at least.