I just returned to Mecabricks after a few months away. What happened to the grouping system? Either I don't know how to use it, or it's just not intuitive anymore. I used to be able to just right click and easily add and remove bricks from a group. It was quick and painless. Now that functionality is gone and the only way to group things is to create a whole new group, or to slowly drag bricks between groups. The former is practically useless outside of first creating groups, and the latter takes so long to scroll it's not feasible. I only have a 1000 pieces in my project and it already takes 60 seconds to scroll up to the top. Is there something I'm missing here?