Studio line and height of activity

1. Is there a way to break the line description into multiple lines? Right now it seems to only display it horizontally.

2. Is there a way to increase the height of the activity box? I can only expand it horizontally.

3. When I use a line type to route from one activity to another, and I want to re-arrange the activities. I have to remove the specific line type and change to another type and re-implement all the logics within the line?!