>>938783981
Just wedge it apart with your fingers. Not sure if they changed anything about them. Haven't had them since childhood, but they were easy to operate.

>>938348246
Thanks. I am doing a second postgrad after work and am preparing to start my doctorate thesis right after - the research topic is already approved. Sadly I wont have time to start it right away.
Not my fault that you flunked out of 8th grade.