- The legend can only be in one of the map corners and its location is chosen automatically to overlap map features as little as possible. As an alternative, you can Ctrl+click (or Cmd+click on mac) any map feature to add "stickers" to all the features listed in the legend and then hide the legend itself via the context menu (or by pressing L).
- Yes. Open the Style dialog (via the context menu or by pressing S), click the "..." button and choose "Text".