I'm not sure really. I'm not having any problems myself with adding automations to lanes. I mainly use the smart tool to add new nodes and then drag them to where I want them. So, for instance, if I want my audio clip to start at zero volume at measure 1 and then increase to -3db by measure 5, I open a new lane, make sure it is the volume envelope, which will probably be at 0db at first. I add a node at the 5th measure and drag that to -3db. The node at the start of measure 1 I'll then drag down to 0db.
That's a simple example of course, but I find the rest of the actions I need to take like adding more nodes, deleting nodes, dragging, copying etc etc all work okay for me...
You can record envelopes real time if you wish, but I like to draw them in myself.