We have just adopted a rescue cat. He is 4. Cat protection took him in as a stray. We've had him 1 week and have kept him indoors. In a couple of weeks we are going to trysting him out and I wanted some advice in how to do it. How do we start the process? When he is able to use the catflap, do we just let him come and go as he pleases or do we need to monitor or regulate his outdoor time? Advice very welcome!