As usual I am sure this is on here and in help but I can't find it! So apologies in advance.
1st time DM and running LMoP. We are having an amazing time and we want to do more, so I am buying a few assets. My example here is that they are short resting in Cragmaw Castle and I am thinking of having the scenario be the patrol returns, sees all the dead bodies, and sets up an ambush (also warns King Grol, who will surprise them and the dobbleganger take the form of Gundren and try and fool the party for a while).
Anyway, I bought the fortification assets from roll20 so I could use some of the barricades and artwork and set them up in the room outside the short rest room - but how do I get them into my game? IT's not an "add-on" and I will probably use these in the future.
Thank you in advance!
John