For the second, open the console ingame with shift+; and type "aiawareofplayer", without the quotes, and press return.
If you're using the DromEd Toolkit, then simply press Alt+F8. This will turn off the AIs' awareness.
The first is more complicated, you need to navigate to the place where you want to start in DromEd.
You can either move the starting point there (it's the object right where the camera is when you first open the mission in DromEd), or navigate the DromEd camera to the appropriate location, type "persistent_player_pos_ in the console, and then go into game mode. (You only have to type the command once per session.) This will make the player appear where the DromEd camera is, rather than at the starting point. Make sure your camera isn't in a wall.