Hi all, A bit of help here please! Just installed my composite decking but i am just about to fit the sides and the trim. Fitted the actual main boards with the plastic hidden clips. 1. How would you attach the trim? Glue or screws? Screw into the frame or the actual composite board? 2. For the side parts, if i was installing the board vertically, how would i attach them. With screw into the actual boards? If with a screw, would i need to space 5-6mm? Seen a lot of installs butting up boards fo the side parts. Thanks! Rob