...you can start a session with 4 PCs and then get both Lae'zel and Us (and maybe even SH for 7??) added to your team in the tutorial.
No, Shadowheart will not join you if you already have Us and Laezel with four PCs.
Now that I think about it, I wonder if that's why they made the change where you can't access companion inventories in the tutorial. Because of multiplayer. If there are already four PCs, then maybe they don't want the inventory screen getting too crowded.
