Is this projector mount also suitable for portable projectors such as the ViewSonic M1+ (has only one threaded tripod screw for mounting)? --> So is the projector only attached to the three mounting arms or also via a screw in the middle? How easy is it to disassemble/assemble a projector (here the language is Vogel's Click & Switch system, how does this work exactly)? The only suitable mount I found on Digitec is a portable projector mount, but I have doubts about the stability & flexibility (quick beamer of this cheap version: Celexon LED Multicel Pico, ceiling mount (ceiling, universal, 2000g) https://bit.ly/2s88Lje Digitec ViewSonic M1+ https://bit.ly/2D8IdAO