Would be very practicle to add portable forges, portable ranges and portable wells to their respective calculator as they provide a 10% bonus xp when used (note that I do believe the forge does stack with stealing creation tools, but i cannot confirm it, being f2p atm) Altough it is explained, it would be sweet to make the smithing calculator show how many bars of X with urns is necessary to level up, instead of just the amount of urns