Clutchless full throttle gear changes on a H box

[RichardB]

Ive got a dog gearset in my standard H patern gearbox, has anyone wired up a full throttle gear change to a H pattern, if so how?

I cant use the clutch, as I want to use clutchless change ups. It needs to be some sort of switch(es) on the actual stick, preferably automatic rather than me pressing it.

[Ian]

What gearbox? Is there a neutral switch and does the gearbox have an intermediate shaft that engages the required selector shaft?