if you think a 4 jet wand uses 4 jets ( obviously :
) so your machine is capable of supplying the correct amount of solution to use 4 handtools. but its supplying them all at the same pressure which will be a problem.
if they are all keyed at same time, no problem, but if you use them all intermittently the pressure will spike uncontrollably
don't think it will work without some serious addition of hardware ( each one will need a separate uploader)