Many thanks for the super-quick reply
I think I should elaborate on what the circuit is for...
ATM, the momentary switch operates a CMOS flip-flop, which toggles a 48V motor on & off, by hard switching a power FET.
I need to be able to reverse the direction of the motor, but can only use the single "start-stop' switch on the machine.
A 2nd push of the switch usually stops the motor when it's running of course, so I'd have to overcome this problem as well.
My aim is to use a Power-FET H-bridge or dedicated driver IC to acheive the direction reversal - that's the easy bit !
I'm guessing this is really a sort of 'sequential logic' problem