On 17/03/2017 14:44, NY wrote:

But is there any safety issue with lots of plugs, via multi-way socket
blocks, all going back to a single wall socket? Is there any advantage
in having the single socket changed for a dual one and plugging half the
appliances (via socket blocks) into one socket and half into the other?
Is a single socket block with 12 sockets in any way safer than a 6-way
with two 4-ways plugged into it?

Leave it all plugged into one socket then there won't be any confusion
if you need to kill the power quickly.

Bill