Old School Essentials Forge *paid* Products support Thread-Advanced Players Tomes
Both tomes can be purchased from Necrotic Gnome on the Forge.
To use these tomes you are required to have the Free OSE ruleset located here: (When you Create your new Campaign Select the OSE2 ruleset in the dropdown)
https://forge.fantasygrounds.com/shop/items/199/view
Advanced Referee's Tome
https://forge.fantasygrounds.com/shop/items/312/view
Advanced Players Tome
https://forge.fantasygrounds.com/shop/items/308/view
Please provide feedback or bug reports here.