So......I bought my cat an outdoor climber module, which is accessed from the house by a clear cat flap in a window.  The cat flap uses magnets to hold it in a closed position if I don't want to 'lock' it using clips on both sides of the flap.  (The magnets are solely on the cat flap, she doesn't wear a collar with a magnet).

My cat likes to go in and out of the module.....provided I wedge open the flap.  If it's closed she sits there and complains to me about it.  (I'm a cruel cat slave apparently). The magnets are small but there is a bit of resistence and it seems she is not keen to push the flap open.

I have put some dry food on the short walkway to the module as an incentive.  She can see the food from in the house but so far this results in more complaints, some tapping on the flap with a paw, but no real effort to open it.

Any tips?