I'm afraid I can't quite understand you, do you mean that you only want to use 2 USB socket? Of course you can do that worldwide, but please be careful, the plug of this product does not fit the socket in Japan.
I quote the description: "The PowerCube Extended USB from Allocacoc is a versatile multiple plug with integrated USB charger that will delight you with its extraordinary design. It offers you four (three if with holder) sockets of type T13, which can be loaded with a total peak current of up to 10 amps, as well as two USB ports for charging smartphones or tablets. These deliver a current of up to 2.1 amps. Thanks to the 1.5 metre long cable, you always have the sockets and USB ports available where you need them."
The holder is independent of the connector format, as it is attached to the groove/recess between the connector location and the housing. This means that one connector slot is lost due to the bracket, leaving "net" 4 T13 connectors for use.
No, this is not included in the scope of delivery. The remote is also not available in Switzerland at the moment. It will probably not be included in the range until the beginning of 2017. See also -> https://www.digitec.ch/de/s1/QuestionAndAnswer/wird-die-remote-dazu-auch-noch-ins-sortiment-aufgenommen-34771?referrerProductId=5973316