Guild Wars 2

Ok thanks guys !!! – So at least 1 character thats Boosted can do HoT, so can that be a character from the new slot you get as well? You have a choice as far as which one gets boosted and when?

Can one play Heart of Thorns @ lvl 40? Getting back into GW2 after a few years and have no clue now on how to do most anything in game.

Thanks for any help.