select the phase lane and in the tool box on the side you will be given the option to change it to from a PhaseLane to wormhole in the connection type box
what do you mean exactly? wormholes can only connect to other wormholes
yes you can, that way you can have a one-way wormhole, though you must have at least one wormhole at one end of the line to make it work
I love to setup wormholes like that
drives the AI nuts 