I have a drawing view in which I've previous used some blocks, but now I don't seem to have the function available. The blocks toolbar is greyed out. The menu Tools > Blocks has only Make, New, & Edit. I've tried locking the view focus, no effect.
The help file only discusses blocks in the context of sketches and makes no mention of usage in drawings.
I have rarely used blocks, so please excuse if I'm forgetting something silly.